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Sunday, January 31, 2016

How to improve eye sight? the chemistry of Vision

How we see an object is a photochemical reaction. For vision to take place the reaction is conversion of cis-retinal an organic molecule with aldehyde group, to trans-retinal. This process is called cis- trans isomerization. When this process takes place in our eye, we are able to see.
Now Whats the role of carrot ?

carrot has vitamin A.
Vitamin A has trans retinol an organic compound with alcoholic functional group. this has to be converted to cis retinol. THis retinol is then oxidized to retinal . 
Carrot is also an good anti oxidant. It makes us look young. Free radicals generated in our body are responsible for ageing of cells. When these free radicals are removed from the body / quenched, then we can maintain our youth look. This is possible by use of free radical scavengers. Carrot is one such miracle food. 
Drink carrot juice with few milliliters of milk and no added sugar. Vitamins are of two types- water soluble and fat soluble. Fat soluble ones are called lipophilic. Vitamin A is lipophilic . Hence milk to carrot juice would help in easy absorption and utilization of vitamin A. Thus vitamin A helps in good vision and  acts as an anti-ageing agent.