![]() ![]() Back to Main MenuĬolour blindness (also called colour vision deficiency or CVD) is a reduced ability to see colours. If you have a calibrated 100% gamut area screen, select "Best". If you have a computer that is older or has a low quality of colour rendering, you should change the Display Colour Quality to Low in the Test Options. Results may vary depending on the quality of screen on your device. I got different results on a different device, why? Sure! We recommend the following Test Options for testing with children: This test is intended only as a rapid assessment test to estimate the type and extent of colour vision deficiency - it does not measure colour vision aptitude or fine colour discrimination. In fact, depending on which glasses you are wearing, results could be worse, or could change in ways that are confusing. The test is not designed to measure the change in colour perception caused by EnChroma glasses. ![]() What happens if I wear EnChroma glasses while taking this test? If using the keyboard you can also press "Enter" or "Space" to indicate the "Nothing" response. If you are completely unsure or see nothing, then tap or click the button that says "Unsure" or Nothing". Yes! If you think you can see a shape, but are still not 100% certain of your choice, it is better to take your best guess. On a computer the keyboard or number pad can also be used. Tap or click the button corresponding to which shape you see. Look for a shape, such as a number or symbol, which is embedded within the dot pattern. You will see a series of images composed of dots with varying size and lightness. Depending on which colours are seen, the type and extent of colour vision deficiency can be estimated. When a person has colour blindness, they are able to see some colours better than others. ![]() By testing with different colours we are able to understand which colours you may have difficulty seeing. This test measures your ability to see a pattern based on its colour. ![]()
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