There are a number of online tests available to identify if a person is color blind. Tests are offered by the Colorblind Home Page, Colblindor, EnChroma and more. More »

www.reference.com Health Vision

During color blindness tests, test administrators show patients multiple cards with dotted patterns, and patients must identify the number or symbol on the card, according to MedlinePlus. The cards generally contain prim... More »

www.reference.com Health Vision

The Ishihara Color Test is designed specifically for those with red-green color deficiencies. It cannot detect other deficiencies, such as the rarer blue colorblindness. When compared to other colorblind tests, the Ishih... More »

www.reference.com Health Vision

During color blindness tests, test administrators show patients multiple cards with dotted patterns, and patients must identify the number or symbol on the card, according to MedlinePlus. The cards generally contain prim... More »

www.reference.com Health Vision

Doctors most commonly test children for color blindness using the Ishihara Color Test, which involves a series of circles formed out of different-colored dots, explains the National Eye Institute. The dots form shapes in... More »

www.reference.com Health Vision

There are multiple types of color blindness, but the most common types involve an inability to distinguish between either red and green or blue and yellow. This causes problems seeing other colors, because a color blind ... More »

www.reference.com Health Vision

Though it is not well understood by those with working vision, blindness does not prevent a person from living a self-sustained life, including their own hygiene. Only for those who are not vision impaired, thorough clea... More »