Wednesday, May 18, 2011

May is Vision Health Month!

Vision Health Month is an initiative that was started last year by the Canadian National Institute for the Blind (CNIB).

The goal is simple: Increase awareness about ocular disease and prevent vision loss.

Many eye diseases are "silent" and cannot be detected by the patient until there is significant vision loss. Unfortunately, this lost vision often cannot be recovered.

Glaucoma is a disease which usually starts off by affecting peripheral vision. Often times it is not noticed by patients until they start bumping into objects or have difficulty changing lanes when driving.

Macular degeneration is another slow moving disease that normally doesn't show up until our 50s. But it affects the macula, which is what we use for central vision.

Although the effects of these two diseases cannot be reversed, early detection can allow us to significantly slow the progression of the disease and allow patients to continue on with healthy, clear vision.

It is important to remember that just because a lot of diseases occur later in life, doesn't mean that prevention at earlier ages is not necessary.

Cataracts are a perfect example of this. Most people understand that cataracts generally develop with age and usually become significant in patients over 50. However, recent studies have shown that a majority of the damage to our eyes from UV light actually occurs in our youth, before the age of 17!

Three easy ways to help your vision:
Eat your veggies, Wear your sunglasses, and See your eye doctor! :)
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Your Doctors of Optometry are here to help you with any questions you have regarding your eye health including kids' health, early prevention, surgery, and anything else you can think of!

In BC, kids 18 and under are free and seniors, 65 and over, are partially covered (amount depends on the clinic).

Check Yearly, See Clearly!

CNIB.ca
BCAO.ca

Monday, May 16, 2011

Georges St-Pierre's Eye Injury

If you watched the UFC 129 championship fight on April 30th or saw pictures immediately following, you probably wouldn't have suspected any serious problems with Georges St-Pierre's left eye. Fine, it was a little swollen and maybe there was a little blood but honestly, not much more than you might expect after going 5 rounds in an MMA title fight.

But during the fight GSP was poked in the left eye and, as a result, was left almost blind in that eye for the remainder of the fight. After the fight, the champ was taken straight to the hospital to be examined and it was determined that he had suffered a hyphema, which is essentially bleeding inside the front segment of the eyeball. As we know, blood is not clear, so when it starts to fill up behind the cornea (the clear dome at the front of the eye), you can assume it will begin to cloud vision.
For those who have read my blog before, you may remember I spoke a little about hyphemas recently when Vancouver Canucks center Manny Malhotra suffered a serious, season-ending injury after being hit in the eye by the puck.

Hyphemas generally clear up on their own with a little rest as the body resorbs the blood over time (kind of like a bruise). But in some cases they can lead to permanent vision loss and increase the risk for glaucoma. Basically, the blood can stick to the inside of the cornea and leave it looking "dirty", thus resulting in blurry vision. It is also possible for the blood cells to clog up the draining system inside the eye which results in a back up of fluid thus increasing the pressure inside the eye. This increased pressure is what leads to glaucoma.

Fortunately for GSP, there were no other serious problems such as retinal detachments and after a couple of weeks of rest, his vision has returned and he is back in gym training.

As you can imagine, eye injuries are pretty common in a sport where you're constantly dealing with blunt trauma to your face. From a fighter's perspective, it creates a serious challenge. Whether the eye is swollen shut or filled with blood, the fighter loses depth perception and can no longer judge distances well. That makes throwing punches, blocking punches, and attempting takedowns all very difficult.

Luckily GSP was able to overcome all of those difficulties and successfully defend his title.


Related Posts:
Eye on Manny Malhotra
Why Josh Koscheck Lost: An Eye Doctor's Perspective
Mirko Cro Cop Suffers Serious Eye Injury