Colour Blindness/Deficiency

Colour Blindness is an outdated term, but we use it here for educational purposes. The proper term is Colour Deficiency, as it is more of a shift in the colour spectrum rather than any sort of true blindness. It is a condition that affects the way people perceive colour. People with colour deficiency have difficulty seeing colour or distinguishing between certain colours, such as red and green or, more rarely, blue and yellow. The most common type of inherited colour deficiency is called red-green colour deficiency, which affects approximately 8 percent of men and 0.5 percent of women around the world. The medical term for this type of deficiency is Deutan, and there are varying levels of deficiency, such as mild, moderate, or severe.


Try this great online tool for testing colour deficiency at home. You can print out the results and bring them into your eye exam if you would like further information. There are also colour-enhancing sunglasses that can shift colour spectrums to allow people to perceive the difference between some shades of colours more easily. They are called Enchroma sunglasses. It is important to note that these glasses don’t cure colour deficiency or allow one with a deficiency to perceive colours the same as someone without a deficiency – but it can be quite remarkable for someone to be able to perceive the difference between shades of colours they would never have been able to without the colour filtering sunglasses. 


Contact us at Louie Eyecare Centre for a comprehensive eye exam to check for colour deficiency or other vision issues.

Book Your Next Eye Exam!

West Edmonton Vision Clinic

Visit our vision clinic in central West Edmonton for comprehensive eye exams, contact lens fittings, glasses, and more. Louie Eyecare Centre is dedicated to providing the highest quality optometric services and products to our patients. Our team of experienced optometrists is here to help you with all of your eye care needs. Schedule an appointment today!

Clinic Hours

Monday Closed
Tuesday 9:00-5:00
Wednesday 9:00-5:00
Thursday 9:00-5:00
Friday 9:00-5:00
Saturday 9:00-2:00
Closed Sunday / Holidays


Frequently Asked Questions

Seniors can maintain good eye health by eating a healthy diet, wearing sunglasses to protect their eyes from UV rays, and avoiding smoking. They should also be vigilant about any changes in their vision and seek medical attention promptly if they experience any concerns.

If an eye condition is detected, the optometrist will discuss and educate the patient in a way that is easy to understand. If the condition requires treatment, they will discuss risks and benefits, and initiate treatment. If surgical intervention is required they will refer the senior to a specialist for further evaluation and treatment.

Seniors should make a list of any concerns or symptoms they are experiencing and bring it to their appointment. They should also bring any eyewear they are using or would like to ask questions about, as well as a list of any current medications.

An eye exam for seniors typically takes about 30 to 60 minutes, depending on the complexity of the exam.

Some optometrists offer tele-optometry services, which allow seniors to have an eye exam from the comfort of their own home using video conferencing technology.

Alberta Health Care covers eye exams for seniors aged 65 and older once every 12 months.