which all the Vitamins required for eye sight improvements?

Answer 1

vitamin a will do... will get in leafy vegetables ..... green vegetables ...... tablets etc!

Answer 2

Vitamin A is the one you need for eyes,but a person needs to get all other vitamins in necessary doses.

Answer 3

God cannot be seen by the human eye. Yet His eternal power and divine character are known and clearly seen by the things He has made. The fact that God cannot be seen does not mean He cannot be known. But, if you were to look at the order of things as being held constant by the creator, who created all things, you can begin to see the God, who was and is powerful enough to create such a beautiful place even though He cannot be seen directly. Now faith is the assurance of things hoped for, the conviction of things not seen. For by it the men of old gained approval. By faith you understand that the world with every beautiful creation was prepared by the word of God, so that what is seen was not made out of things which are visible...!

Answer 4

Vitamin A

Vitamin A is a generic term for a large number of related compounds. Retinol (an alcohol) and retinal (an aldehyde) are often referred to as preformed vitamin A. Retinal can be converted by the body to retinoic acid, the form of vitamin A known to affect gene transcription. Retinol, retinal, retinoic acid, and related compounds are known as retinoids. Beta-carotene and other carotenoids that can be converted by the body into retinol are referred to as provitamin A carotenoids. Hundreds of different carotenoids are synthesized by plants, but only about 10 % of them are provitamin A carotenoids (1). The following discussion will focus mainly on preformed vitamin A and retinoic acid.

The retina is located at the back of the eye. When light passes through the lens, it is sensed by the retina and converted to a nerve impulse for interpretation by the brain. Retinol is transported to the retina via the circulation, where it moves into retinal pigment epithelial cells (diagram). There, retinol is esterified to form a retinyl ester, which can be stored. When needed, retinyl esters are broken apart (hydrolyzed) and isomerized to form 11-cis retinol, which can be oxidized to form 11-cis retinal. 11-cis Retinal can be shuttled across the interphotoreceptor matrix to the rod cell, where it binds to a protein called opsin to form the visual pigment, rhodopsin (visual purple). Rod cells with rhodopsin can detect very small amounts of light, making them important for night vision. Absorption of a photon of light catalyzes the isomerization of 11-cis retinal to all-trans retinal and results in its release. This isomerization triggers a cascade of events, leading to the generation of an electrical signal to the optic nerve. The nerve impulse generated by the optic nerve is conveyed to the brain where it can be interpreted as vision. Once released all-trans retinal is converted to all-trans retinol, which can be transported across the interphotoreceptor matrix to the retinal epithelial cell to complete the visual cycle (2). Inadequate retinol available to the retina results in impaired dark adaptation, known as "night blindness."

Answer 5

1

Answer 6

VITAMIN A

Answer 7

vitamin A..............present in carrots n green leafy vegetables.....

Answer 8

VIT A.