How Do I Check If My Child Is Colour Blind?

Facts about Colour Vision Deficiency (CVD):
✅ People with CVD don’t see the world in black and white. They just have trouble distinguishing between certain colours
✅ The most common type is red-green colour deficiency
✅ Affects males more than females
✅ When undiagnosed, kids may avoid games revolving around colour and may experience isolation for not seeing colours the way others do

Here’s is a link to The Curious Eye – a fun, interactive, FREE e-book created by the Children’s Eye Foundation of AAPOS to help screen for colour vision deficiency in children!

If you have any concerns, an optometrist can also assess for colour vision deficiencies, along with ocular health issues and refractive error (aka “prescription checks”). We can do first eye exams as early as 6-12 months! Get your kids in early to screen for vision problems! We can do it even before they can talk! Call 905-666-4848

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Police Eye Exams

For your police application, the OACP certificate requires a special peripheral vision test (visual field) and colour vision test (D-15), which not all optometry offices have. They’re available at Whitby Vision Care, so let the staff know about your police application when you’re calling, and they can book everything you need along with your comprehensive eye exam! Call (905) 666-4848

#OPP #OACP #durhampolice #eyeexam #eyetest #colourtest #peripheralvision

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Inventing Accidents

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Big discoveries are often made by accident! Don McPherson was working on tinted lenses to protect the eyes of surgeons, until his friend found a very different use for them 😉 Here’s a cool episode of Planet Money on how Enchroma lenses were developed.

Dr. Lee loves podcasts!! Feel free to share your favourites 😊

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How Enchroma Glasses Work

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Have you heard of Enchroma glasses? Based on the viral video, it looks like they can “fix” colour blindness! Although they can’t actually do this, here’s how they work.
Colour blindness does not mean someone sees the world in black/white or grayscale. People with colour deficiency do see colours, but because of a change in their photoreceptors of the retina, certain wavelengths look very similar. There are different kinds of colour deficiency, but for example, a person might find it hard to distinguish between reds, browns, and greens. The glasses help by filtering out the wavelengths with the most overlap, which cause the most confusion (see pic below). As a result, this allows people to see a bigger distinction between colours, and everything looks more vibrant. They can see shades they’ve never seen before, which were previously muddled together in the zone of overlap. It’s hard to imagine what it must feel like to put these on, but it brings on some very interesting questions about colour and how we perceive colour! 🤩

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