What It’s Like to Go Blind

DrLee

Happy Thanksgiving to our American friends!

This is something I found last month, and it serves as a reminder to not take our vision for granted. Be grateful for your eyesight and your ability to see all the sale signs this weekend! Be grateful that you don’t need to rely on your other senses, because all the extra hustle and bustle would be very confusing for your ears. Be grateful for this amazing sense which allows you to gather information about the world around you, and remember to take care of your eyes.

Tod and Justin Purvis suffer from choroideremia, a condition which causes progressive blindness. It starts with difficulty seeing at night, and causes tunnel vision, which eventually extends to your central vision. 6 years ago, they took a trip across America to gather memories before going completely blind. They filmed the experience, which you can watch in their documentary, Going Blind. Tod Purvis went on the internet community Reddit to answer questions about his trip and what it is like to go blind.

Here are some interesting descriptions of his vision, from Tod Purvis:
“It’s hard to describe nothing. It’s not black, it’s like if you were looking through a tunnel, and the walls of the tunnel were made of mirrors and it reflected what was at the end of the tunnel”

“It’s all on the outside, I would say it’s blurry/fuzzy. Honestly there’s no such thing as BLACK to a blind person. There’s just nothing. It’s very hard to describe. One of the best scenes in a film, is in the film BLINDNESS, a children (who’s blind in the film) walks into a desk, that the audiences does not see and then it pops into view. That moment is EXACTLY how we see.”

“Close, [wear] sunglasses and smeared them with vaseline, and wore them all the time that would be kind of like it. [sic]”

“My vision was fine as a kid, I really didn’t notice it until my mid 30’s where I noticed the losing the outside and the night vision. Justin noticed it much earlier than I.”

Additional descriptions of vision loss from other users:
“Try this: Close both eyes, then hold your left eye closed, open your eyes and look out your right eye while keeping the left one held closed. Notice how your left vision just vanishes, but it doesn’t go black, it just doesn’t exist anymore. Try it with the other eye too.” – user KernelTaint

On why they took the trip:
“But we took the trip to put the memories in our brain where we could always call them up even if we completely lost our sight. There is an amazing scene in the film about a man who is almost totally blind who calls up his memories in order to live a full ‘visual’ life.”

The most beautiful places they visited:
Devil’s Tower in Wyoming, Glacier Park in Montana, Grand Canyon

Their film’s main message:
“”No matter what your situation … live your life to the fullest.”

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See the rest of their responses here : Choroideremia Ask Me Anything (NSFW)

They also created an award winning documentary about their experiences which can be found here: Driving Blind

To help support those with Choroideremia, you can donate to the causes listed here: Choroideremia.org and here: Blindness.org

DrLee

This week, Dr. Lee partnered with Kids2See to provide free vision screenings for JK and SK students at Secord Elementary School in Toronto. Kids2See is an initiative run by University of Toronto Med students Emily Wright, Aaron Chan and Eli Kisilevsky with the purpose of identifying children with vision impairments which require early treatment, and ensuring that they receive a complete eye exam from a qualified eye specialist further to the screening. They also strive to educate parents and school officials on the importance of routine eye exams, as 10-20% of vision problems may be missed by the screening. The school screenings only flag certain problems, so it is still important to have yearly comprehensive eye exams for complete assessment of your child’s eye health.

Kids2See will be visiting other schools weekly throughout November – January. Thanks for giving me the opportunity to help out! 🙂

kids vision screening — Checking one eye at a time!

*No pictures of the kids due to privacy reasons

DrLee

Halloween is just around the corner, and while a crazy pair of contacts might seem like the perfect addition to your costume, DO NOT buy unprescribed lenses from over-the-counter or online sellers. Anyone who is not an optician, optometrist, or ophthalmologist selling contact lenses is doing so illegally. This also applies to circle lenses or any coloured lenses you can buy randomly at non-optical stores at the mall or online. Many websites claim to sell “100% authentic” and “#1 brand” lenses, but this is not safe.

Contact lenses are medical devices, which means they are subject to specific safety requirements. Online and over-the-counter products are produced by unknown manufacturers, who don’t follow the requirements. Contact lenses are NOT one-size-fits-all, and just like wearing the wrong shoe size, ill-fitting contacts can cause major discomfort and damage to your eyes.

The main concern is that these manufacturers may use unknown materials to make the lenses, and the sealed packaging does NOT guarantee that the lenses are sterile. Contaminants may scratch your cornea, cause an allergic reaction, or cause a serious infection which may result in permanent scarring and vision loss.
The risk of corneal infection when using cosmetic lenses compared to prescription contacts lenses is 12.5 times higher, as shown in a recent study

“In the past year we have received numerous incident reports from optometrists who have treated patients with serious cases of infection, corneal ulcers, corneal abrasion, allergic reactions and swelling resulting from novelty contact lenses,” said Dr. Paul Geneau, CAO president.
Read more here: Cosmetic contact lenses may cause blindness, warn doctors

You may think it’s not a big deal if you wear them for just one night…. Lots of people have prescribed contact lenses from their doctor for occasional wear! However, the risk is MUCH, MUCH higher with unprescribed lenses because 1) those lenses have not been approved for safety and 2) you have not been fitted with by a licensed professional.
In this 5 On Your Side clip, Robyn Rouse talks about wearing decorative lenses for a short period of time. “I put them in – wore them for 5 minutes… Took them out and went to sleep,” recalled Rouse. “In less than 24 hours – this is something that I have to deal with now for the rest of my life,” she added. Robyn developed an eye infection, which, after 10 years of eye problems, resulted in her having to get a corneal transplant.

There are good options out there for coloured lenses approved by Health Canada! You need to be fitted, even if you want non-prescription “strength” in the lenses. Make an appointment with Dr. Lee and let the staff know you are interested in coloured lenses so we can order in some trials to have ready at your next visit.

If you notice redness, swelling, excessive discharge, pain or discomfort from wearing contact lenses, remove the lenses and seek immediate medical attention from an optometrist. Eye infections like keratitis can quickly become serious and can cause blindness if left untreated.
Dr. Lee can be reached in Markham at (905) 805-0889 or in Pickering (905) 420-7070

DrLee

Do your eyes feel tired and uncomfortable after a long day at work or studying? Eye strain is very common if you spend long periods of time staring at a computer screen without taking proper breaks. Even people who have “perfect vision” and don’t normally need glasses can have symptoms with prolonged computer use.

Common symptoms of Computer Vision Syndrome:

Eye strain
Headaches
Double vision
Red, irritated or dry eyes
Blurry vision, difficulty focusing
Neck, back, or shoulder pain

What causes Computer Vision Syndrome?

Eyestrain occurs with prolonged periods of high visual demands, especially when you are focusing up close and doing activities such as reading, writing, and using digital devices. This can be very tiring on your eyes if you don’t take the time to relax your focusing mechanism. Even a small uncorrected refractive error (such as nearsightedness, farsightedness, astigmatism) or eye teaming misalignment can affect how comfortably your eyes focus up close. Depending on your condition, you may be working extra hard to maintain a clear image, which causes strain over time.

Furthermore, staring at a computer screen or at a book all day causes people to blink about half as often as they usually do, which causes dryness because the eyelids are supposed to spread tears across your eyes to keep them moist and healthy. Dryness causes irritation and blurry vision when there isn’t a smooth surface for light to enter the eyes.

It’s hard to avoid digital screens these days, so here are some tips to prevent eye fatigue:

Position your screen at about arm’s length away and 20 degrees below eye level
Minimize glare on your screen by re-positioning yourself or using anti-glare filters
Keep your screen clean and free of dust/smudges
Remember to TAKE BREAKS! Use the 20-20-20 Rule: Every 20 minutes, look at something at least 20 feet away for 20 seconds! This is so important for relaxing your eyes
Remember to BLINK! Everyone blinks less when staring at something, but try to be intentional about blinking. If your eyes are feeling dry, talk to Dr Lee about eyedrops to relieve discomfort.
Make sure your glasses prescription is up to date so that you’re not working extra hard to focus
During your eye exam, talk to Dr Lee about your computer usage. You may benefit from glasses to wear at work (even if you don’t need them usually), or if you already have glasses, ask for anti-reflective coatings which reduce glare from screens and overhead lights.

Computers are a big part of life now so it’s important to take the necessary steps to prevent eye problems and keep yourself comfortable at work!

Eye strain can also be a sign of more serious eye conditions. If it persists at any time of day (not just when you’ve been reading or using a computer), or is associated with headaches, double vision, nausea, or changes in your eyesight, please contact Dr. Lee immediately.

DrLee

What is the purpose of that awful air puff? If you hate doing that test, you’re definitely not alone!

The air puff test is called non-contact tonometry (NCT) and it measures the pressure inside your eyes. The machine shoots a small puff of air into your eye, and it calculates the pressure inside your eye based on how the air bounces back.

If you can’t handle that test, there are alternatives such as Goldmann tonometry (the blue light test). This involves a yellow drop which glows under blue light. The doctor will view your eyes very closely with a prism, and then the pressure can be calculated based on how the light is bent. This method is also painless, and even more accurate than the NCT.

Your eyes are filled with fluid, and if there is something causing a fluid buildup, the increased pressure can cause damage to the structures of your eye, resulting in vision loss. High pressures can be the first sign of glaucoma, or the result of other things such as injury, infection, or a tumour around the eye. There is usually no pain or symptoms with high eye pressure. It is like having high blood pressure – you won’t feel it unless it is at an unsafe level. That is why it’s important for an optometrist to do this test and measure your pressure every year. It’s a little uncomfortable but it’s over faster than a pressure cuff squeezing your arm! 🙂

What It’s Like to Go Blind

School Vision Screening for Kids

Costume Contact Lenses Carry High Risk of Infection

Tired Eyes At Work

Air Puff Test – What Is It For?