To have and to enjoy lifetime of good eyesight you need to know about retina and keep it functioning properly. Retina is sensory membrane which is composed of several layers of neurons. Retina lines inner surface of the back of the eyeball. Its purpose is to receive light that lens has focused and send them…
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Color in a human being is determined by two or more genes and the pigmentation of the eye’s iris.In a human being, the natural coloring of the iris varies. The natural coloring of the iris varies from light brown to black depending on how the melanin is concentrated.Tyndall scattering of light in the stroma causes…
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Eyes are sense organs that react to pressure and light to create vision. They attain their color from melanin variations that occur in the iris. Common human eye color includes blue, hazel, brown, gray and green. The human eye color is determined by the blending of white collagen fibers with the melanin present in the…
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There are three types of color blindness; Red-Green color blindness indicated by a limited function of either the red or green cone photopigment. (Cone cells are responsible for detecting color). Blue- Yellow color blindness causes a person to confuse blues with green and yellows with violet. Then there is complete colour blindness where a person…
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Rainbows are a one-of-a-kind natural phenomenon that have been fascinating mankind from the very beginning. There are numerous legends revolving around this seemingly magical arc of color. Some people believe it to be a bridge between the homes of Gods, while others believe it to be a path created by God for us to follow…
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A contact lens is a thin curved lens that is placed in the eye and is specifically designed to cover the pupil of the eye. Contact lenses act as an extension of the eye and are used to correct irregularities that are responsible for a number of vision problems. These include Myopia (short-sightedness), Hyperopia (long-sightedness),…
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Eye colour blindness is a condition that some have where they can’t tell certain colours apart, usually between red and green, and occasionally blue. There is a test that people take to see whether they have this colour deficiency or not, called the Ishihara Test. A Japanese professor called Dr Shinobu Ishihara was tasked with…
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Welcome to Daltonism.org.uk! We will shortly on this page present information regarding daltonism and everything color blindness-related. If you or anyone you know suffer from daltonism, make sure to bookmark this page for further information in the future.
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