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Colour deficiency occurs when colours and shades appear different than usual. Although “colour blindness” is often used to describe people with a colour deficiency, this often is not accurate. Total colour blindness is referred to as achromatopsia, and the condition only affects a very small number of people.
Colour deficiency is more common in males than females, with 1 in 10 males having a colour deficiency. The condition is usually inherited, but also may occur as a side effect of certain eye diseases, trauma, or medication.Request Appointment
Cones help to determine different colours, specifically red, green, and blue. The cones send information to the brain to create different colour perception. If one or more of these cones aren’t functioning correctly, colour deficiency occurs.
Types of Colour Deficiency
Different types of colour deficiency exist when different cones in the eye aren’t functioning correctly or pick up on the wrong colours.
The most common type of colour deficiency is a red-green colour deficiency. There are 4 different types of red-green colour deficiency:
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Visit Our Office
You can find our beautiful new office at 90 Sheppard Avenue East in North York. Access the building’s parking lot just off of Sheppard Ave East onto the Parkway, around the back of the building. You can also access the Parkway by Doris Avenue, just past the Toronto Catholic School Board.
We offer complimentary parking for patients who sign in at our front desk.
- 90 Sheppard Avenue East
- North York, Ontario M2N 3A1
Hours of Operation
- Monday: 9:00 AM – 7:00 PM
- Tuesday: 9:00 AM – 8:00 PM
- Wednesday: 9:00 AM – 7:00 PM
- Thursday: 9:00 AM – 7:00 PM
- Friday: 9:00 AM – 1:00 PM
- Saturday: 9:00 AM – 1:00 PM
- Sunday: Closed