What does a yellow tint in the cornea of the eye mean?


A yellow tint around the cornea could be a symptom of hypercarotenemia, an excess intake of beta carotene.

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Chemistry Carotene Cornea Carotenosis


Vitamin A is a group of unsaturated nutritional organic compounds, that includes retinol, retinal, retinoic acid, and several provitamin A carotenoids, among which beta-carotene is the most important. Vitamin A has multiple functions, it is important for growth and development, for the maintenance of the immune system and good vision. Vitamin A is needed by the retina of the eye in the form of retinal, which combines with protein opsin to form rhodopsin the light-absorbing molecule, that is necessary for both low-light (scotopic vision) and color vision. Vitamin A also functions in a very different role as an irreversibly oxidized form of retinol known as retinoic acid, which is an important hormone-like growth factor for epithelial and other cells.

Keratoconus Vitamins Carotenoids Hydrocarbons Health Medical Pharma Health Medical Pharma

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