Glossary of Terms - Courtesy Dictionary.com
There are 27 entries in this glossary.All
| Term | Definition |
|---|---|
| LASIK |
Eye surgery in which the surface of the cornea is reshaped using a laser, performed to correct certain refractive disorders, such as myopia. |
| Lutein |
Also called xanthophyll. a yellow-red, water-insoluble, crystalline, carotenoid alcohol, C(40)H(56)O(2), found in the petals of marigold and certain other flowers, egg yolk, algae, and corpora lutea: used chiefly in the biochemical study of the carotenoids. |
| Orthokeratology |
A technique for correcting refractive errors in vision by changing the shape of the cornea with the temporary use of progressively flatter hard contact lenses. |
| Retina |
The innermost coat of the posterior part of the eyeball that receives the image produced by the lens, is continuous with the optic nerve, and consists of several layers, one of which contains the rods and cones that are sensitive to light. |
| Retinal Detachment |
A condition of the eye in which the retina has separated from the choroid called also detached retina,detachment of the retina |
| Tear |
A drop of the saline, watery fluid continually secreted by the lacrimal glands between the surface of the eye and the eyelid, serving to moisten and lubricate these parts and keep them clear of foreign particles. |
| Vitamin C |
A white, crystalline vitamin, C(6)H(8)O(6), found in citrus fruits, tomatoes, potatoes, and leafy green vegetables and used to prevent scurvy. |
| Vitamin E |
A pale-yellow viscous fluid, abundant in vegetable oils, whole-grain cereals, butter, and eggs, and important as an antioxidant in the deactivation of free radicals and in maintenance of the body's cell membranes: deficiency is rare. |
| Vitreous Humor |
The transparent gelatinous substance filling the eyeball behind the crystalline lens. |
| Zeaxanthin |
A yellow crystalline carotenoid alcoholC(4)0H(56)O(2) that is isomeric with lutein and occurs widely with it and that is the chief pigment of yellow Indian corn |
| Zinc |
A ductile, bluish-white metallic element: used in making galvanized iron, brass, and other alloys, and as an element in voltaic cells. |
