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What Exactly is an Eye Chart?

If there’s one aspect of optometry that everyone recognizes, it’s the traditional eye chart, with its rows of big letters on top, which gradually become smaller the farther down you go. This chart is usually known as the Snellen chart.

Yet how much do you really know about this eye chart? Are all eye charts the same? How are these eye charts used? And when were they invented?

Here’s everything you need to know about eye charts and more!

What is an Eye Chart?

An eye chart is one of the tools your eye doctor uses to assess your eyesight. Based on how well you can see various letters on the chart, your optometrist will determine whether you have myopia (nearsightedness), hyperopia (farsightedness), presbyopia (age-related farsightedness) or astigmatism, and will measure the prescription that will give you the clearest, most comfortable vision.

Are All Eye Charts The Same?

There are a number of variations to the standard Snellen eye chart. The one an eye doctor uses depends on the personal needs and abilities of the patient. For example, eye doctors will use charts with pictures or patterns for younger children who may not have learned to read or identify letters and numbers.

There are also certain charts that specifically measure distance vision, while others are better for measuring near vision.

History of the Snellen Eye Chart

The Snellen eye chart was developed by Dutch eye doctor Hermann Snellen in the 1860s. Before this standardized eye chart was developed, each eye doctor had their own chart that they preferred to use.

Having so many different eye charts made it impossible to standardize the vision correction available to patients. Eyeglass makers didn’t receive the defined measurements they needed to accurately design, manufacture and measure the optical prescriptions their patients needed.

For the first time, the Snellen eye chart allowed a person to provide a standardized prescription from any eye care provider they chose to any eyeglass maker, and get the same optical lenses to accurately correct their vision.

How The Snellen Chart Is Used in Eye Exams

The standard Snellen chart displays 11 rows of capital letters, with the first row consisting of a single large letter. The farther down the chart you go, the smaller the letters become.

Your Washington, D.C. eye doctor will ask you to look through a phoropter – an instrument used to test individual lenses on each eye during an eye exam – and look at the Snellen chart placed 20 feet away. Your eye doctor will prescribe the lenses that provide you with the clearest and most comfortable vision.

In many offices, where 20 feet of space may not be available, you’ll be asked to view the chart through a mirror. This provides the same visual experience as if you were standing 20 feet away.

If you have 20/20 vision, it means you can see what an average person can see on an eye chart from a distance of 20 feet. On the other hand, if you have 20/40 vision, it means you can only see clearly from 20 feet away what a person with perfect vision can see clearly from 40 feet away.

If you have 20/200 vision, the legal definition of blindness, this means what a person with perfect vision can see from 200 feet away, you can see from 20 feet away.

Does 20/20 Visual Acuity Mean Perfect Vision?

No. While eye chart tests identify refractive errors, they can’t detect signs of visual skill deficiencies or diseases such as glaucoma, cataracts or macular degeneration. These are diagnosed using advanced equipment as part of a comprehensive eye exam with your local Washington, D.C. eye doctor. Early diagnosis and treatment of eye conditions are essential to ensuring long-term vision and eye health.

For more information, give us a call at 202-335-5032 or visit us in person at Washington Eye Doctors, today!

Q&A With Your Local Optometrist

How do you keep your eyes healthy?

You only have one set of eyes – don’t take them for granted!

Make sure to implement the following habits for healthy eyes (and body). These include:

  • Eating a balanced diet rich in fiber, fruits and vegetables
  • Drinking plenty of water to hydrate your body and eyes
  • Not smoking, and avoiding 2nd-hand smoke
  • Wearing sunglasses to protect your eyes from ultraviolet (UV) rays
  • Maintaining normal BMI with regular exercise
  • Regular visits to your eye doctor as recommended

What health conditions can an eye exam detect?

A comprehensive eye exam can often detect certain underlying diseases that can threaten your sight and eye health, such as diabetes, high blood pressure, high cholesterol, tumors, autoimmune conditions and thyroid disorders. This is why having your eyes checked regularly is key. The earlier the diagnosis and treatment, the better the outcome and the higher your quality of life.

Bloodshot Eyes – Should You Be Concerned?

You wake up in the morning ready to start your day, only to discover that your eyes are bloodshot. That might not be surprising if you stayed up late to finish a project, had too many drinks at a party or spent time in a smoke-filled room.

But bloodshot eyes can also signal an underlying eye problem. If your eyes appear red or bloodshot, make an appointment with an eye doctor for a comprehensive eye exam to determine the cause and to receive effective treatment.

Why Do I Have Bloodshot Eyes?

When blood rushes to the front of the eye, the tiny red blood vessels on the white of the eye dilate and become visible. This makes the eyes appear red and irritated.

So why do these blood vessels dilate, causing your eyes to look bloodshot?

Bloodshot eyes tend to be caused by:

  • Dry eyes
  • Irritants such as smoke, pollen and perfume
  • Lack of sleep
  • Excessive alcohol consumption
  • Spending too much time in front of the computer

Bloodshot eyes due to lifestyle and environmental irritants may disappear on their own, or you can try to relieve them with over-the-counter eye drops or liquid tears. Lifestyle changes, such as getting more sleep, cutting down on alcohol intake and limiting screen time can often be helpful. If allergies are the culprit, oral antihistamines and antihistamine eye drops may relieve symptoms.

At other times, underlying problems requiring prompt medical attention can cause your eye’s blood vessels to dilate. The following are some of these medical conditions:

Conjunctivitis

You’ve probably heard of “pink eye.” It’s another name for infectious conjunctivitis – an infection of the conjunctiva, the thin membrane covering the eyelid and the front surface of the eye.

There are two types of infectious conjunctivitis – bacterial and viral.

If your child has conjunctivitis, they’re not alone. About 12% of kids get bacterial conjunctivitis every year. This highly contagious condition affects children and adults. In addition to reddish eyes, the following symptoms are associated with conjunctivitis:

  • Bacterial conjunctivitis – irritated eyes, swollen eyelids, eye discharge, crusty eyelids and excessive tearing
  • Viral conjunctivitis – cold or flu-like symptoms, runny nose, fever, itchy eyes, excessive tearing

If you or your child are experiencing these symptoms, it’s important to schedule a prompt appointment with an eye doctor, who can diagnose whether the conjunctivitis is viral, bacterial or due to allergies.

Depending on the diagnosis, your eye doctor will prescribe antibiotic eye drops or creams to treat bacterial conjunctivitis. The viral form may run its course after a few days, but cold compresses and non-prescription eye drops may provide relief.

Dry Eye Syndrome

If your eyes are chronically bloodshot you may have dry eye syndrome (DES). Signs of DES include:

  • Dry, irritated eyes
  • Burning or stinging eyes
  • Discharge from the eyes
  • Light sensitivity
  • A feeling you have something stuck in your eyes
  • Blurred vision
  • Watery eyes

Dry eye syndrome is most commonly caused by a blockage of the tiny meibomian glands in the eyelids. These glands secrete oil that keeps eye moisture from evaporating too quickly. Without the oil, tears dry fast, leaving your eyes feeling dry, itchy and with a bloodshot appearance.

Too much screen time, aging, certain medications such as antihistamines, and medical conditions such as Sjogren’s syndrome can cause dry eye syndrome.

In addition to any medications or in-office treatments your eye doctor recommends, make sure to get plenty of hydration, take frequent breaks from digital screens and use a humidifier in your home.

Uveitis

In addition to bloodshot eyes, if you also experience blurred vision, see floaters or your eyes feel painful, you may have an eye inflammation called uveitis. The causes of uveitis include:

  • Autoimmune or inflammatory condition
  • Infection
  • Medication side effects
  • Cancer (in rare cases)

Unfortunately, uveitis symptoms can often be mistaken for something less serious. That’s the reason it’s important to get an eye exam if your eyes are bloodshot. Left untreated, uveitis can lead to serious conditions such as retinal scarring, cataracts and vision loss.

Depending on the cause and severity, your eye doctor may treat uveitis with prescription eye drops, steroid pills, injections or eye implants.

Eye Injury

It’s vital that all eye injuries receive immediate eye care from an eye doctor.

Even a minor eye injury can cause a big red blotch to form on the white part of the eye (sclera). The cause is a broken blood vessel or a subconjunctival hemorrhage.

Although the appearance of this blood looks severe, and can make the entire white part of the eye appear bright red, a subconjunctival hemorrhage is usually painless and doesn’t cause vision loss. Any time you notice excessive blood on the eye following an eye injury, schedule an appointment with an eye doctor to assess the health of your eye.

Glaucoma

In rare cases, bloodshot eyes may signal the presence of glaucoma – a leading cause of vision loss and blindness.

While some types of glaucoma don’t show symptoms in the early phases, bloodshot eyes can indicate the type of glaucoma that requires immediate medical care. This disease causes damage to the optic nerve due to excessive pressure within the eye. When this pressure suddenly rises, the eye’s blood vessels become dilated and visible, making the eye appear red.

If you have bloodshot eyes and/or have the following risk factors for glaucoma, immediately schedule an appointment with your eye doctor.

  • Family history of glaucoma
  • Aged 60+
  • African American, Asian or Hispanic
  • Diabetes
  • High blood pressure

Bloodshot Eyes Won’t Go Away?

Talk to Us Any time you notice bloodshot eyes or blood on the front of the eye, don’t wait. Schedule your eye exam with Dr. Michael Rosenblatt at Washington Eye Doctors in Washington, D.C. today.

Q&A With Your Local Optometrist

Can I get bloodshot eyes after LASIK surgery?

LASIK surgery is highly effective minimally invasive laser eye surgery that can correct refractive errors, but like all surgical procedures, it can have side effects. Your eyes may be bloodshot or you could see halos from a few days to three weeks after surgery. Additionally, you may experience other dry eye symptoms. Eye drops and liquid tears can alleviate these symptoms, but if you have any concerns about your eyes following LASIK surgery contact your eye surgeon.

What Should I Expect from a Glaucoma Exam?

If you have a family history and/or other risk factors for glaucoma, and if your eyes look bloodshot, consider scheduling a glaucoma exam. Your eye doctor may perform the following tests:

  • Tonometry – eye pressure test
  • Gonioscopy – to see how fluid is draining out of your eye
  • Vision field test – to examine the functioning of the optic nerve
  • Dilated pupil exam – to detect any damage to the optic nerve
  • Retinal photo or OCT – digital examination of the retina and optic nerve health

What’s Your Optometrist Role in Cataract Surgery?

If you’re over the age of 60, there’s a good chance you’ll develop cataracts sometime in the next 20 or so years. While the only effective long-term treatment for cataracts is surgery, it can take years or even decades for a cataract to reach the point where it needs to be surgically removed.

In the meantime, your optometrist can monitor its progression, manage your symptoms and ensure you have the best vision possible. Once your cataract makes it difficult for you to function day-to-day, your eye doctor will refer you to an ophthalmologist who will perform eye surgery to replace your eye’s natural lens with a clear artificial lens.

Following your surgery, your optometrist will co-manage your post-op recovery in coordination with your eye surgeon.

Your Optometrist Will Discuss Cataract Treatment Options

A cataract, a clouding of the eye’s natural lens caused by the breakdown of proteins in the lens, leads to progressively blurry vision. So if you’ve been diagnosed with a cataract but aren’t yet ready for surgery, you’ll be having regular contact with your optometrist, who will explain the condition, discuss your treatment options and help manage your symptoms.

Once you’re diagnosed with cataracts, you may want to slow the progression of the condition. Working with an optometrist who knows your personal and family health history as well as your various options for cataract management and surgery is a massive advantage, as your optometrist can give you advice on dietary and lifestyle changes.

The Importance of Regular Eye Exams

Regular eye exams are important for everyone, and particularly if you’ve been diagnosed with cataracts. Because the cloudy areas on your eye lenses will worsen with time, your optometrist will carefully monitor your vision and upgrade your glasses or contact lens prescription as needed. Your optometrist will perform a visual acuity test and other tests to gauge increased sensitivity to light and glare, as well as deterioration in your contrast and color vision.

When’s It Time for Cataract Surgery?

At some point, your optometrist may determine that your cataracts are severe enough to require surgery. That’s typically when options to correct your vision — updated prescriptions and speciality filters that block glare and increase contrast vision — are no longer sufficient to give you the vision you need.

Your optometrist can recommend an ophthalmologist and provide information about what to expect during cataract surgery. You’ll see your eye surgeon for post-surgery check-ups, and your optometrist for long-term eye care.

If your vision is blurred or if you notice a cloudy patch forming on your eye, you may have developed cataracts. For optimal vision care and cataract management, make sure to schedule an appointment with Dr. Michael Rosenblatt at Washington Eye Doctors in Washington, D.C. today.

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What’s the best treatment for cataracts?

Although many people use glasses to manage cataract symptoms and improve their deteriorating vision, the only way to really treat cataracts is via surgery. You may want to delay the procedure, but once your quality of life is affected to the degree that it’s difficult to drive or perform everyday tasks, it’s time to have cataract surgery.

Will cataracts return after surgery?

Generally, no. Because the eye’s natural lens is removed and replaced with an artificial one during cataract surgery, a cataract can’t return to that eye. That said, there’s a possibility that a few years after the surgery, you may need a quick laser procedure if the proteins on the lens capsule — the layer that holds the artificial lens in place — becomes cloudy.

5 Vision-Saving Tips for National Save Your Vision Month

March is here. And you know what that means…

It’s National Save Your Vision Month!

In honor of this special month, which not only signals the start of spring but reminds us to protect our eyes, we’ve put together a list of 5 essential ways that you can ‘save your vision.’

It goes without saying that routine eye exams are a top priority when it comes to taking care of your eyes, so here are 5 additional things you can do to keep your eyes healthy and your vision clear.

1. Maintain a Healthy Diet

You’re likely aware that a balanced diet consists of all different types of nutritious foods that contain the vitamins and nutrients you need to keep your body healthy and strong.

But did you know that certain foods actually promote eye health and can lower your risk of eye disease?

Eating foods that are high in omega-3 fatty acids, lutein and zeaxanthin, as well as vitamins A, B, C and E, can protect your eye health and help save your vision from sight-threatening eye diseases, like age-related macular degeneration (AMD), diabetic retinopathy and glaucoma.

If you don’t think your daily meals offer enough of these essential vitamins and nutrients, ask your doctor whether you should add a daily supplement to your diet.

2. Limit Screen Time

The digital world has created a new venue for working, communicating, socializing and entertainment. But it’s also brought about a new eye condition called computer vision syndrome (CVS) — also called digital eye strain (DES) — that’s a growing concern among eye care professionals.

Not only can too much screen time affect productivity in work and school, but it can also result in dry, red, irritated eyes, blurry vision, headaches, neck, back and shoulder pain, and even have a negative effect on your mood and quality of sleep.

So this month, take it upon yourself to be more aware of how much time you spend in front of a digital screen, and try to set boundaries whenever possible for you and your children. You can also practice the 20-20-20 rule — every 20 minutes, look at something at least 20 feet away for a minimum of 20 seconds.

3. Use Protective Eyewear

Every day, thousands of people receive emergency care for an eye-related accident — many of them resulting in permanent damage and vision loss.

The best way to protect yourself and your loved ones is by wearing protective eyewear for all activities that pose an eye health risk — from sports and water gun fights to lightsaber tournaments and science experiments. And, of course, this also implies any type of home-improvement project that involves small particles like grass, saw dust or metal flying into your eye.

Protective eyewear can truly save your vision.

4. Wear Sunglasses All Year Round

Sunglasses are more than just a fashion accessory to enhance your look. They shield your eyes from the sun’s harmful UV rays, which can damage your vision and lead to serious eye diseases like cataracts and macular degeneration.

Now you have an even better excuse to go out and buy yourself the new pair of shades you’ve been dreaming about. Just make sure they offer 100% UV protection.

Wear your new sunglasses all year round, even on cloudy and snowy days, because the sun’s UV rays can penetrate the clouds and reflect off the snow-covered ground, doubling your exposure.

5. Quit Smoking

If you’ve been thinking about quitting, now’s the time! Smoking is not only dangerous for your overall health, it increases your risk for sight-threatening eye diseases like glaucoma, diabetic retinopathy, age-related macular degeneration and cataracts.

So, for the sake of your vision and overall health, take the first steps toward kicking your smoking habit.

In honor of National Save Your Vision Month, why not try some of these vision-saving habits that can help you keep your eyes and vision healthy for a lifetime. Your future self will thank you.

Interested in learning more about how you can protect your eyes and vision? Contact Washington Eye Doctors in Washington, D.C. today to schedule an appointment. We’ll be happy to answer any of your questions and to offer you the best possible eye care.

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Do children need to wear sunglasses?

Yes, sunglasses are essential for protecting your child’s eyes both now and in the future. A child’s eyes are still maturing and are therefore even more susceptible to UV damage than adults. Encourage your child to wear sunglasses whenever they play outside by setting a good example and making sure to wear sunglasses whenever you venture outdoors.

What are sports goggles?

Sports goggles are a type of protective eyewear worn by many athletes. These goggles contain impact resistant, durable polycarbonate lenses, offering the ultimate eye protection during sports activities. If you or your child play sports, sports goggles are an essential accessory to your athletic gear.

10 Ways to Give Your Eyes Some Love This Valentine’s Day

Valentine’s Day is the time to express your love and appreciation to those you care about most. But it’s also a great opportunity to take the time to pamper yourself — so why not start with your eyes?

Practice these 10 healthy lifestyle habits to help protect your eye health and vision.

1. Be Mindful of the Food You Eat

Fill your plate with fresh fruits and veggies, lean proteins and whole grains. A well-balanced diet is good for your body and can lower your risk of eye disease.

Studies show that foods high in vitamins A, C, E, Omega-3, lutein and zeaxanthin are especially beneficial for promoting eye health.

2. Drink Plenty of Water

Drinking at least eight 8-ounce glasses of water each day will keep your body hydrated and your eyes moist — which is essential for preventing dry eye syndrome. To add some flavor to your water, try adding a splash of lemon juice or swap some of those glasses of water for an herbal tea or other non-caffeinated beverage. Caffeinated drinks have a dehydrating effect, so try to limit your coffee consumption as much as possible.

3. Exercise Regularly

Exercise is widely known for its physical and mental health benefits, but studies show that it can also lower your risk of serious eye conditions and diseases. Cardio exercise in particular has been shown to lower eye pressure and improve blood flow to the retina and optic nerve at the back of the eye. So grab your gym bag and get moving!

4. Don’t Smoke

If you’ve been thinking about quitting, there’s no better time than now. Smoking tobacco significantly raises your risk of developing sight-threatening eye diseases like diabetic retinopathy, cataracts and age-related macular degeneration (AMD), and can also lead to their early development.

Smoking also robs the body of the essential vitamins and minerals it needs to maintain eye health, and contains around 7,000 chemicals that can lead to eye irritation and dry eye.

5. Practice Good Makeup Hygiene

While wearing makeup can accentuate your eyes and make you feel more beautiful, it’s important to note that if not used properly, certain makeup products can adversely affect eye health.

To keep your eyes and vision healthy, make sure to:

  • Clean your brushes and applicators regularly
  • Toss any expired products, or eye makeup you’ve used during an eye infection
  • Only apply makeup to the outer margin of your eyelids
  • Remove your makeup before going to bed
  • Never share makeup or use in-store testers

Following these safety tips will help to lower your risk of eye infections and other serious complications.

6. Wear Sunglasses

Studies show that prolonged UV exposure can damage the eyes and lead to the development of sight-threatening eye conditions, like cataracts, macular degeneration and glaucoma, in the future.

Purchase a pair of stylish sunglasses with 100% UV protection and wear them any time you venture outdoors — the sun’s UV rays can penetrate the clouds and reflect off of snow, sand, water and pavement. So keep a pair of sunglasses next to your front door and a spare pair in your bag or car to ensure you have UV protection wherever you go.

7. Prevent Eye Injuries

About 90% of vision loss from eye injuries can be prevented by wearing the right eye protection.

Protective eyewear like sports goggles or glasses with polycarbonate lenses are designed with sturdy materials that are less likely to break or shatter while you play sports, and can protect your eyes from small particles that fly in the air when you mow the lawn or engage in DIY projects.

8. Learn First Aid for Eye Injuries

Let’s be real, accidents can happen even if we take all the right measures to protect ourselves. But knowing what to do in case of an unexpected eye injury can potentially save you or someone you love from permanent eye damage or vision loss.

Note: Any type of eye injury should be taken seriously, and promptly examined by an eye doctor.

9. Avoid Digital Eye Strain

Prolonged screen time can cause eye strain, dry eyes, blurry vision and headaches — and lead to a condition called digital eye strain, also known as computer vision syndrome.

Avoid symptoms of digital eye strain by limiting screen time as much as possible. If prolonged screen time is unavoidable, practice the 20-20-20 rule: set an alarm on your phone as a reminder to take breaks every 20 minutes to focus on an image at least 20 feet away, for at least 20 seconds.

10. Visit Your Eye Doctor

Regular eye exams are crucial when it comes to maintaining your eye health. With an eye exam, your eye doctor can identify early signs of sight-threatening eye diseases and conditions — enabling earlier treatment and increasing your chances for optimal results.

From all of us at Washington Eye Doctors in Washington, D.C., we wish you a Happy Valentine’s Day!

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What’s the difference between an eye exam and vision screening?

Vision screenings are basic tests of visual acuity, generally conducted by a school nurse or pediatrician. These screenings can’t identify many vision conditions that impact learning or work performance, and are unable to detect ocular health problems.

A comprehensive eye exam, which is performed by an eye doctor, includes tests for visual acuity and functional vision, as well as close examination of the inner and outer structures of the eye.

How often do I need to have an eye exam?

According to the American Optometric Association (AOA), it is important to have your eyes examined every one to two years, depending on your age, whether or not you wear glasses or contacts, your family history of eye disease, and your ocular health to date. Annual eye exams help your eye doctor monitor your eye health and easily identify any changes in your vision.

Vision Exams: What Does 20/20 Vision Really Mean?

eye exam near me

If you’ve had your eyes examined, your eye doctor likely asked you to read letters and numbers from an eye chart. That was to check for changes in your visual acuity, or sharpness of vision. Visual acuity can be measured in different ways, but the most common way is by using a Snellen eye chart — a chart with different sized letters and numbers in descending rows.

In 1862 Dr. Herman Snellen, an eye doctor in Holland, created the Snellen eye chart and coined the term ‘20/20 vision.’ Below we explore what that really means.

What is 20/20 Vision?

20/20 vision describes how clearly a person with normal visual clarity can see. All measurements of vision are taken when the patient is located 20 feet from the eye chart. A person with 20/20 vision can clearly read a certain row of small letters on the Snellen chart from 20 feet away.

A person with 20/40 vision who is 20 feet from the eye chart can only see the letters double the size of the letters that a person with normal vision can see.

Likewise, a person with 20/80 vision, who is 20 feet from the chart can only see letters four times larger than those seen by a person with 20/20 sight.

Legal blindness is considered to be 20/200 vision, and means that an individual with this sight at 20 feet away from the eye chart can only see letters 10 times larger than those seen by a person with 20/20 sight.

Is 20/20 Perfect Vision?

Not necessarily. This is a standard of measurement used by optometrists to help assess distance vision and prescribe eyeglasses and contacts, but vision is more than just 20/20 sight.

Several other visual skills are essential to functioning in today’s world and even a person with 20/20 vision can lack other necessary visual skills. Well-developed visual skills help individuals succeed at school, in the workplace and sports. For example, skills like eye tracking, teaming, convergence and visual processing all need to be up to par for a person to truly have ‘perfect vision.’ Visual acuity is just one piece of the puzzle.

Additionally, 20/20 isn’t the clearest possible vision. Some people have 20/15 or even 20/10 vision. This means their visual acuity is higher than a person with 20/20 sight.

How To Correct Visual Acuity

The first step in correcting a visual acuity problem is to undergo a comprehensive eye exam with your local optometrist. If your vision requires correction, your eye doctor will explain the different methods of vision correction, including prescription glasses and contact lenses.

Some people choose to correct their vision with refractive surgery, but like any surgery, it comes with the risk of surgical complications.

At Washington Eye Doctors, our goal is to help all patients achieve clear, crisp and comfortable vision, no matter their visual condition.

Not sure you have 20/20 vision? Call Washington Eye Doctors in Washington, D.C. today to schedule your eye exam today!

Frequently Asked Questions

Q: What conditions can impair visual acuity?

  • A: Conditions like astigmatism, nearsightedness (myopia), farsightedness (hyperopia) and an age-related loss of focusing ability (presbyopia) all impact sharpness of vision at various distances. Other conditions, including dry eye syndrome and cataracts, can also affect visual clarity.

Q: How common is it to have 20/20 vision?

  • A: Approximately a third of adults in America have 20/20 vision without the use of any vision correction, and 75% of American adults have 20/20 vision when wearing prescription lenses or other forms of vision correction.

Quality Frames For Prescription Eyeglasses & Computer Glasses. Visit Washington Eye Doctors for an eye exam and eyeglasses that match your style.


Can Restricting Online Gaming Time Reduce Myopia Progression?

Two kids playing online gamesThe Chinese government recently implemented a new policy that’s sparked conversations about childhood myopia and online gaming.

Under the policy, Chinese children and teens under the age of 18 are only permitted to play online video games for one hour on weekend evenings and public holidays — a significant reduction compared to their previous online gaming allotment. This restriction includes all forms of video games, from handheld devices to computer and smartphone gaming.

The government hopes to combat a common condition called online gaming disorder, or video game addiction, which affects more than 30% of children in China. Another potential benefit of limiting online gaming may be a reduction in childhood myopia progression, something we explore below.

The Link Between Online Gaming and Myopia Progression

Myopia, or nearsightedness, is a condition that causes blurred distance vision. Several factors contribute to the onset and progression of myopia, including genetic and environmental.

Several studies have found that screen time, along with other forms of near work, is associated with higher levels of myopia and myopia progression in children.

According to a study published in the British Journal of Ophthalmology (2019), children who engage in screen time for more than 3 hours per day have almost 4 times the risk of becoming myopic. Younger children, around ages 6-7, are even more susceptible to experiencing screen-related nearsightedness, with 5 times the risk compared to children who don’t use digital screens.

Limiting screen time may also encourage children to spend more time outdoors in the sun, a protective factor against developing myopia and slowing its progression.

In The Sydney Adolescent Vascular and Eye Study (2013), researchers found that spending at least 21 hours outdoors per week was more important for delaying the onset of myopia than limiting near work in both younger and older children, although both were effective.

What’s the Bottom Line?

Although online gaming can give children a sense of community and togetherness, excessive online gaming can increase a child’s risk of developing myopia and contribute to its progression.

The good news is that parents can make eye-healthy choices for their children that can have lifelong benefits. Limiting near work activities like online gaming and other screen time, and encouraging your children to play outdoors can significantly reduce their chances of developing high (severe) myopia.

How Myopia Management Can Help

The best thing that parents can offer their children to prevent myopia and halt its progression is a custom-made myopia management treatment plan with an eye doctor.

Whether or not myopia has set in already, we can help preserve your child’s eye health and lower their risk of developing sight-threatening eye diseases like glaucoma, cataracts, macular degeneration and retinal detachment in the future.

To learn more about our services or schedule your child’s myopia consultation, contact The Myopia Management Center At Washington Eye Doctors in Washington, D.C. today!

The Myopia Management Center At Washington Eye Doctors offers myopia management to patients from Washington, D.C., Bethesda, Arlington, and Chevy Chase, District of Columbia and surrounding communities.

Frequently Asked Questions with Dr. Michael Rosenblatt

Q: Who is an ideal candidate for myopia management?

  • A: Children, teens, and young adults who are nearsighted or are at risk of becoming nearsighted are ideal candidates for myopia management. If you think myopia management is right for you or your child, speak with us about how we can help. Remember, the sooner your child starts myopia management, the better their outcome will be.

Q: Is myopia management based on scientific evidence?

  • A: Yes! The treatments used in myopia management are all safe and clinically proven to slow the onset and progression of myopia in children and teens. There have been several scientific studies that support its effectiveness.

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How Pregnancy Can Affect Your Eyesight

Pregnancy can impact almost every part of a woman’s body and health — including her eyes. In fact, an estimated 14% of pregnant women report experiencing visual changes during pregnancy that usually resolve on their own within a couple of months after giving birth.

Knowing the different visual symptoms that can present when you’re expecting can help alert you to potential underlying health concerns that your physician may need to address.

Normal Visual Changes During Pregnancy

Blurred Vision

Blurred vision is the most common visual symptom that pregnant women may experience. Hormonal fluctuations are usually to blame for the temporary decrease in visual acuity, and your eyesight will likely return to normal soon after giving birth.

The influx of pregnancy hormones causes fluid retention in some areas of the body and can cause the cornea to thicken slightly. As a result, the light entering the eye isn’t focused accurately and vision may be blurred.

Less commonly, blurred vision can signal gestational diabetes, a pregnancy complication affecting 6-9% of pregnant women. The rise in blood sugar level impacts the focusing lens of the eye, leading to blurry vision. If you are diagnosed with diabetes, including gestational diabetes, it’s a good idea to book an eye exam to monitor for retinal changes.

Blurred vision is also a common side effect of dry eye syndrome, a condition characterized by tears that don’t adequately lubricate the eyes, which can be brought on or exacerbated by pregnancy.

Eye Dryness

Pregnancy hormones can cause a reduction in the amount of tears your eyes produce or affect the quality of the tears. These changes can affect a woman throughout her entire pregnancy, but studies show that eye dryness is particularly common in the last trimester. For this reason, some women find it difficult to wear contact lenses in their third trimester and temporarily switch to glasses.

Eye Puffiness

Yet another body part that swells during pregnancy: the eyelids and tissues around the eyes.

Pregnancy-related water retention may cause your eyelids to appear puffier than during your pre-pregnancy days. You may also notice darker areas under the eyes. If your puffy eyes bother you, try limiting your salt and caffeine intake, as they can worsen the problem.

Visual Changes That May Indicate a Problem

The following visual changes warrant a prompt call to your eye doctor or obstetrician to rule out any underlying complications.

Flashes or floaters

Seeing stars during pregnancy can signal high blood pressure, which is associated with preeclampsia — a serious medical condition that requires close monitoring by your physician and possible treatment.

It’s crucial to have your blood pressure monitored throughout your pregnancy, as preeclampsia can potentially endanger the life of mother and child, as well as damage the cornea and retina.

Temporary vision loss

Temporary vision loss is concerning for pregnant and non-pregnant individuals. Vision loss is another warning sign of preeclampsia, so contact your doctor promptly if you suddenly lose any portion of your visual field.

Sensitivity to light

Light-sensitivity can either be a normal side effect of fluid retention in the eye, or it can signal dangerously high blood pressure and preeclampsia.

How We Can Help

At ​​Washington Eye Doctors, our goal is to keep your vision and eyes healthy throughout your pregnancy and beyond. If you experience any visual symptoms, we can help by thoroughly examining your eyes to determine the underlying cause and provide you with guidance on what next steps to take.

Pregnancy is a wonderful time, when self care should be at the forefront — and that includes comprehensive eye care.

To schedule an eye exam or learn more about our eye care services, call Washington Eye Doctors in Washington, D.C. today!

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Q&A With Our Eye Doctor in Washington, D.C., District of Columbia

Why are regular eye exams important?

Having your eyes evaluated by an optometrist on a regular basis is crucial for detecting early signs of eye diseases and changes in your prescription, including during pregnancy. Many serious eye diseases don’t cause any noticeable symptoms until they’ve progressed to late stages, when damage to vision may be irreversible. Whether or not you wear glasses or contact lenses for vision correction, ask your optometrist about how often to schedule a routine eye exam.

Will my baby need an eye exam after birth?

According to the American Optometric Association and the Canadian Association of Optometrists, babies should have an eye exam within the first 6-12 months of life, even in the absence of noticeable vision problems. Healthy vision is a significant part of healthy overall development, so be sure not to skip your baby’s eye exams!

Blinking Exercises for Dry Eye

Blinking Exercises 640×350Did you know that the average person spends around 7 hours a day looking at a screen? The glare and reflections from computer, smartphone, and tablet screens can reduce blink rates by as much as 60%. When we concentrate intensely we tend to blink less, which can, in turn, lead to dry eye syndrome.

Symptoms of dry eye syndrome include red and dry eyes, irritated eyes, blurred vision, painful or stinging eyes, light sensitivity and mucus around the eyes.

Blinking helps keep our eyes healthy and comfortable. With every blink, the ocular surface is cleaned of debris and lubricated, so less blinking means more irritation and dryness.

Below are a few blinking exercises to help you ensure that your eyes remain lubricated and refreshed throughout the day.

Blinking Exercises

Blinking exercises are simple to do and can be seamlessly integrated into your daily routine. These exercises should be done a few times an hour. Try alternating between the 2 exercises below.

1. Close-Pause-Pause-Open-Relax

  1. Without squeezing, gently close your eyes.
  2. Pause and keep your eyes closed for 2 seconds.
  3. Gently open your eyes and relax them.
  4. Repeat 5 times

2. Close-Pause-Pause-Squeeze-Open-Relax

  1. Without squeezing, gently close your eyes.
  2. Pause and keep your eyes closed for 2 seconds.
  3. While keeping your eyes closed, squeeze your eyelids together slowly and gently.
  4. Gently open your eyes and relax them.
  5. Repeat 5 times

The Importance of Fully Blinking

It’s important to fully blink to completely lubricate your eyes. If you’re only partially blinking, it can render your dry eye symptoms worse.

To find out whether you are fully blinking, just look at your eyes in the mirror. If they feel dry or appear red, or if you see a horizontal stripe of red blood vessels across your eyes, then you have been partially blinking.

If you’ve incorporated blinking exercises into your routine but are still experiencing eye irritation, you may have dry eye syndrome. We can diagnose the underlying cause of your symptoms, and offer a variety of dry eye treatments to alleviate any discomfort. Schedule an eye exam with The Dry Eye Center At Washington Eye Doctors today to receive effective, long-lasting relief.

The Dry Eye Center At Washington Eye Doctors serves dry eye patients from Washington, D.C., Bethesda, Arlington, and Chevy Chase, District of Columbia and surrounding communities.

Frequently Asked Questions with Dr. Michael Rosenblatt

Q: What is dry eye syndrome?

  • A: Dry eye syndrome is caused either by insufficient tears or poor tear quality. Every time you blink, you leave a thin film of tears over the surface of your eyes. This helps keep your vision clear and your eyes healthy. If your tears don’t keep the surface of your eye moist enough, you will experience dry eye symptoms. Some medical conditions, certain medications, dysfunctional glands, allergies and environmental irritants can all cause dry eye symptoms.

Q: What are the symptoms of dry eyes?

  • A: Symptoms of dry eye include irritation; a gritty, scratchy or burning sensation; blurred vision; excessive tearing; and/or a feeling of having something stuck in the eye.

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6 Tips For Adjusting To Wearing Scleral Lenses

6 Tips For Adjusting To Wearing Scleral Lenses 640×350Congratulations on your new pair of customized scleral contact lenses! As with most new things, there can be a learning curve when getting your scleral contacts to feel and fit just right.

Whether you’ve been prescribed sclerals for keratoconus, dry eye syndrome, corneal abnormalities or other conditions, it can take up to two weeks for you to feel completely comfortable in your new contacts.

Here are some tips to help shorten the adjustment period on your scleral lens journey:

1. Stick to proper hygiene protocol

Even the most perfectly fitted scleral lenses won’t feel right if they aren’t cleaned and cared for properly. Carefully follow the hygiene guidelines prescribed by your optometrist without cutting any corners. Although it may seem tedious at first, your efforts will be well worth the results.

2. Practice makes progress

The only way to make inserting and removing your lenses second nature is to wear them. Don’t be discouraged if it takes a bit more time to insert them than you’d anticipated. Wearing your sclerals daily will give you the opportunity to practice wearing and caring for your lenses.

3. Try out different insertion tools and techniques

At your initial fitting or follow-up consultation, your eye doctor will show you ways to safely and comfortably insert your lenses. Some patients prefer using a large plunger, while others prefer the scleral ring or O-ring. If neither of these recommended techniques are working for you, seek advice from your eye doctor.

4. Overfill the lens

A common problem that many patients encounter when they begin wearing scleral contact lenses is how to get rid of tiny air bubbles that get trapped in the lens’ bowl. Try filling up the lens with the recommended solution until it is almost overflowing. That way, you’ll have enough fluid left in the lens even if some spills out when you bring it up to your eye.

5. Give it time

If your scleral lenses feel slightly uncomfortable upon insertion — don’t worry. It’s recommended to wait 20-30 minutes to allow them to settle on the eye’s surface before attempting to readjust or remove them. Of course, remove them immediately and try again if you feel significant discomfort.

6. Follow up with your optometrist

Even once you leave your optometrist’s office, we encourage you to remain in touch with your eye doctor if something doesn’t feel right or if you have any questions regarding your scleral lenses.

To learn more or to schedule a scleral lens consultation, call The Scleral Lens Center At Washington Eye Doctors today!

The Scleral Lens Center At Washington Eye Doctors provides scleral lenses to patients from Washington, D.C., Bethesda, Arlington, and Chevy Chase, District of Columbia and surrounding communities.

Frequently Asked Questions with Dr. Michael Rosenblatt

Q: What are scleral contact lenses?

  • A: Scleral contact lenses are rigid gas permeable lenses with a uniquely large diameter. They rest on the sclera (whites of the eyes) instead of the cornea, making them a more comfortable and stable option for people with corneal irregularities or dry eye syndrome. Scleral contacts hold a reservoir of nourishing fluid between the eye’s surface and the inside of the lens, providing the patient with crisp and comfortable vision.

Q: Who is an ideal candidate for wearing sclerals?

  • A: Patients with keratoconus, corneal abnormalities, ocular surface disease (dry eye syndrome) and very high refractive errors can all benefit from scleral lenses. Moreover, those with delicate corneas due to disease or after surgery find scleral lenses to be comfortable and therapeutic, as the lenses don’t place any pressure on the sensitive corneal tissue.

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