Diet is of vital importance for the health and beauty of the eyes. People using their eyes for long hours or working either in extremely bright or in dim light must necessarily take care of their eyes. 

• A balanced diet of milk, butter, fruits, green vegetables and proteins should be taken for the proper care of the eyes. Each of the essential nutrients needed by the body plays some part in the health and beauty of the eyes.
   

• Healthy mucous membrane, or the normal flow of tears, determines the sparkle in the eyes. A good diet is also essential to the health of certain tissues, known as mucous membranes, which line the tear ducts and tear glands. . 
   

• The ideal diet is the natural and uncooked food. Fresh fruits such as oranges, apples, grapes, peaches, papaya and pomegranate; green vegetables like lettuce, cabbage, spinach, turnip tops; root vegetables like potatoes, turnips, carrots, onions and beetroots; nuts, dried fruits and dairy products being the most essential ones. 
   

• Genuine whole meal bread is the best and most suitable. Cereals are also necessary but they should be consumed sparingly. . 
   

• Digestion and health of the body can be altered due to excessive intake of jams, cakes, pastries, white sugar, white bread, tea and coffee, together with meat and fish. 
   

• Alcohol, Constipating or wind/gas forming foods and other intoxicating substances are also harmful and should be strictly avoided.
   

• Riboflavin and vitamin B 2 are necessary for visual health. Green leafy vegetable, milk, cheese, egg, citrus fruits, banana, tomato, brewer's yeast, almonds and sunflower seeds etc are valuable natural sources of this vitamin. Dull eyes and abnormal vision due to riboflavin deficiency can thus be found in almost any person who fails to eat these foods. 
   

• Raw carrots contain vitamins and help to maintain the eyes in a healthy and bright condition. Therefore they should be taken liberally. 
   

• Vitamin A is the most essential consituent for normal and healthy eyes. Therefore liberal amount of vitamin A must be continuously supplied by the food. 

• Cod liver oil, whole milk, curd, butter, egg yolk, pumpkin, carrots, green leafy vegetables, tomatoes, mango papaya, orange and melon are he valuable sources of this vitamin . 

• The eyes may become sensitive to bright lights and the person may suffer from visual fatigue and a consequent feeling of tiredness if vitamin A is in short supply.

• Visual fatigue and sensitivity to light grow progressively and becomes more pronounced in case of the severe deficiency of this vitamin.

• An adult should have at least 10,000 units of Vit-A daily in order to keep the eyes normal, beautiful and bright.