Why do I need to have my eyes examined by an Optometrist if the nurse at my last physical exam says I can see 20/20?

The nurse performed a “sight test”, when you come to see your Optometrist we perform an “Eye Exam”. A “sight test” only measures if you can see 20/20. An “Eye Exam” measures all aspects of visual function: sight (or visual acuity), binocular vision function (the ability of the eyes to work together), visual pathway integrity, and the overall health of your eyes. Seeing 20/20 is an important part of the overall function of your eyes; however, just because you can see 20/20 does not necessarily mean your eyes are 100% healthy. There are many conditions that exist in which someone can still see 20/20. To name just a few examples: Diabetic Retinopathy, Glaucoma, and even Retinal tears or detachments (if the macula is unaffected). I recommend having a full eye exam every 1-2 years, even if you are in good health and feel like you don’t need glasses.

Does reading my smart phone or tablet in the dark damage my eyes?

Reading from a tablet or smartphone in the dark is okay for your eyes, as long as this is not for a long period of time. There is good lighting from these devices, with good contrast. There is, however, the blue light emitted from these devices. Blue light is a short wavelength light, with high energy that may cause damage to the structures of the eye if exposed for a long period of time. As well, studies have shown this blue light can disrupt melatonin production which is required for a healthy sleep cycle. Doctors of Optometry recommend limiting screen use during the last hour before bedtime.

What is blue light and why is it dangerous?

Blue light is part of visible light and close to UV on the light spectrum. It is naturally produced by the sun, used in fluorescent light bulbs and emitted by LED screens on computer monitors, tablets, and smartphones. The eyes’ natural filters do not block blue light and chronic exposure can cause age-related macular degeneration. Evidence also shows that blue light exposure can lead to sleep problems.'

My eyes are always burning and tired, what is causing this and what can I do about it?

These are often signs of dry eye syndrome, a very common condition that affects many people over time. Women are generally more prone to developing these symptoms and aging is often a cause as well. Dryness of our eyes is often due to a decrease in the oil production in our eyelid glands which causes the surface of the eye to become irritated. Certain medications and health issues can also contribute to dryness. There is no true cure for dryness but many treatments are available such as the use of artificial tears, nutritional supplements incorporating Omega 3, prescription medications such as Restasis, and eyelid hygiene. No single treatment works for every individual so we customize treatments for each person and their specific condition.

Dry Eye

9 Eye-Healthy Habits for Computer Users

As Covid-19 kept all of us homebound for long periods, the gaming industry grew by leaps and bounds. Then, even when countries began to reopen and jumpstart their economy, nobody abandoned their video games. In fact, sales of video games experienced a 35% jump.

Impact of Gaming on Eye Health

What are some of the effects of this rising role of gaming in our lifestyle? It translates directly into increased screen time, which our optometrist near you points out is linked to a variety of negative effects on eye health. For some of us, the digital era has turned our days into an endless view of screens. As a result, many people suffer the symptoms of computer vision syndrome, such as:

Less blinking, leading to dry eyes
Blurry vision
Eye irritation, burning
Eye fatigue and strain
Headaches

While it’s unlikely that excessive screen time can cause irreversible damage to your eyes, dry eye syndrome and eye strain can worsen gradually – leading to painful vision and a decreased quality of life.

How to Preserve Healthy Vision with Computer Use

To help keep your vision healthy, despite all the long periods spent at a computer, the eye doctor near you recommends the following habits:

The 20-20-20 Rule Instead of staring for hours on end at a computer screen, take regular breaks to rest your eyes. Follow this rule – every 20 minutes, move your eyes to look at an object 20 feet away for at least 20 seconds.
Set Up Good Lighting Glare and other visual disturbances can make it harder to read text, which can lead to eye strain. By angling your monitor away from light sources and windows, you can eliminate glare from the screen.
Adjust Screen Brightness When adjusting the lighting in your office or home is too tricky, change the monitor’s brightness instead. Rule of thumb – make it as bright as the room you are in.
Take Eye Health Vitamins Supplements such as omega-3 fatty acids are a great addition to your eye care routine, helping to fortify your eyes against problems.
Block Blue Light You can wear specialized blue light glasses to shield your eyes from harmful blue light emitted by digital devices, or install a blue light filter on your digital screen. Not only will these protective devices help promote quality eye health, but they can also help you sleep better at night.
Eat Nutritiously A healthy, balanced diet will keep your body at its peak and improve vision to boot. Some good food choices include cold-water fish, like salmon, tuna and sardines, nuts, eggs, legumes, whole grains, berries, leafy greens, and citrus fruits.
Increase Font Size A small font size can cause you to squint and hunch over to see the screen clearly. By enlarging the font, you can avoid the discomfort caused by this position.
Sleep Enough Not getting enough sleep can lead to eye fatigue, which interferes with your everyday life and productivity.
Visit Our Eye Clinic Near You for Regular Eye Exams Getting your eyes checked is essential for proper eye health. It’s the only reliable way to detect or rule out an eye disease or condition that requires early treatment.

Many eye diseases can be quickly and easily diagnosed during a Comprehensive eye exam, Pediatric eye exam and Contact lens eye exam. If you were diagnosed with an eye disease, such as Cataracts, Astigmatism, Pink Eye or conjunctivitis Myopia or Nearsightedness , Glaucoma, Macular degeneration, Diabetic retinopathy, or Dry eye, you may be overwhelmed by the diagnosis and confused about what happens next. Will you need medications or surgery – now or in the future? Is LASIK eye and vision surgery an option for you ? Our New Hamburg eye doctor is always ready to answer your questions about eye disease and Contact lenses.

Book an eye exam at Dolman Eyecare Centre eye clinic near you in New Hamburg, Ontario to learn more about your candidacy for contact lenses and which type is right for you. Call 844-823-6594

Dolman Eyecare Centre, your New Hamburg eye doctor for eye exams and eye care

Alternatively, book an appointment online here CLICK FOR AN APPOINTMENT

- Why do I need to have my eyes examined by an Optometrist if the nurse at my last physical exam says I can see 20/20?
  
  The nurse performed a “sight test”, when you come to see your Optometrist we perform an “Eye Exam”. A “sight test” only measures if you can see 20/20. An “Eye Exam” measures all aspects of visual function: sight (or visual acuity), binocular vision function (the ability of the eyes to work together), visual pathway integrity, and the overall health of your eyes. Seeing 20/20 is an important part of the overall function of your eyes; however, just because you can see 20/20 does not necessarily mean your eyes are 100% healthy. There are many conditions that exist in which someone can still see 20/20. To name just a few examples: Diabetic Retinopathy, Glaucoma, and even Retinal tears or detachments (if the macula is unaffected). I recommend having a full eye exam every 1-2 years, even if you are in good health and feel like you don’t need glasses.
- Does reading my smartphone or tablet in the dark damage my eyes?
  
  Reading from a tablet or smartphone in the dark is okay for your eyes, as long as this is not for a long period of time. There is good lighting from these devices, with good contrast. There is, however, the blue light emitted from these devices. Blue light is a short wavelength light, with high energy that may cause damage to the structures of the eye if exposed for a long period of time. As well, studies have shown this blue light can disrupt melatonin production which is required for a healthy sleep cycle. Doctors of Optometry recommend limiting screen use during the last hour before bedtime.
- What is blue light and why is it dangerous?
  
  Blue light is part of visible light and close to UV on the light spectrum. It is naturally produced by the sun, used in fluorescent light bulbs and emitted by LED screens on computer monitors, tablets, and smartphones. The eyes’ natural filters do not block blue light and chronic exposure can cause age-related macular degeneration. Evidence also shows that blue light exposure can lead to sleep problems.’
- My eyes are always burning and tired, what is causing this and what can I do about it?
  
  These are often signs of dry eye syndrome, a very common condition that affects many people over time. Women are generally more prone to developing these symptoms and aging is often a cause as well. Dryness of our eyes is often due to a decrease in the oil production in our eyelid glands which causes the surface of the eye to become irritated. Certain medications and health issues can also contribute to dryness. There is no true cure for dryness but many treatments are available such as the use of artificial tears, nutritional supplements incorporating Omega 3, prescription medications such as Restasis, and eyelid hygiene. No single treatment works for every individual so we customize treatments for each person and their specific condition.

How Sleep Apnea Affects The Eyes

Did you know that some eye conditions are associated with sleep apnea? According to the National Sleep Foundation, more than 18 million Americans have sleep apnea, and Health Canada reports similar prevalence. It’s a sleep disorder where people stop breathing — often multiple times per night — while sleeping.

If you have sleep apnea: it tends to take longer for your tears to be replenished, you’re more likely to have ocular irritation, you have a higher chance of developing floppy eyelids, and you’re at increased risk for glaucoma.

What Is Obstructive Sleep Apnea?

There are different types of sleep apnea. The most common one is obstructive sleep apnea (OSA). During OSA, your airway becomes partially blocked due to relaxed muscles in your nose and throat. This causes apnea (the absence of breathing) or hypopnea (abnormally shallow, slow breathing). It’s twice as common in men, and is more likely to affect people with obesity, hypertension, diabetes or heart disease.

What are the common symptoms of sleep apnea?

Sleep apnea occurs when the muscles in the back of your throat relax too much to allow normal breathing. These temporary breathing lapses cause lower-quality sleep and affect the body’s oxygen supply, which can lead to potentially serious health consequences.

While snoring is a common symptom, not everyone who snores has sleep apnea. Interrupted sleep can cause excessive daytime sleepiness, fatigue, irritability or depression, headaches in the morning, difficulty concentrating and thinking, and a sore throat.

Which Eye Conditions Are Associated With Sleep Apnea?

Glaucoma

Glaucoma occurs when increased pressure within the eye damages the optic nerve, which connects the eye to the brain, leading to vision loss and sometimes blindness. In some cases, it might be due to a drop in blood oxygen levels, which happens when you stop breathing. However, CPAP machines, one of the most common treatments for sleep apnea, can also cause glaucoma.

So, people with sleep apnea — even if it’s being treated — need to get their eyes checked on a regular basis for glaucoma.

Floppy Eyelid Syndrome

Floppy Eyelid Syndrome (FES) is an eye condition where a person has an unusually large and floppy upper eyelid. It can cause eye redness, irritation, discharge, or blurry vision — and over 90% of people with FES also have sleep apnea.

Non-Arteritic Anterior Ischemic Optic Neuropathy

Non-arteritic anterior ischemic optic neuropathy (NAION) is an eye condition that occurs when there is a loss of blood flow to the optic nerve. Patients typically complain of significant vision loss in one eye without any major pain. Approximately 70-80% of patients with NAION have been found to have OSA.

Retinal Vein Occlusion

Also referred to as an ‘eye stroke,’ retinal vein occlusion (RVO) is a blockage of the small veins that carry blood away from the retina. A recent study of 114 RVO patients found that sleep apnea was suspected in 74% of the patients that had previously been diagnosed with RVO.

Other Eye Health Issues Associated With Sleep Apnea

Some other ocular conditions that are more common in patients with sleep apnea include: papilledema, keratoconus, and central serous chorioretinopathy. Furthermore, in addition to glaucoma mentioned above, CPAP machines are associated with dry eye syndrome and bacterial conjunctivitis.

Talk To Your Doc

Get eye exams regularly to rule out eye disorders and prevent potential vision loss, especially if you have been diagnosed with sleep apnea. At Vision North Eye Care in Meadow Lake we encourage you to share your medical history with us so we can better diagnose and treat any eye conditions or ocular diseases you may have, and help you keep your eyes nice and healthy.