Prevention is better than cure .This is applicable for eye health too. Eye care is better than eye cure. So do take good care of your eyes. This can be done by taking in lot of vitamins especially vitamin A into your diet. Other diets that are rich in minerals are also good to eyes .Some of the exercises can also ensure good eye health .

Eat lots of green, leafy veggies, says Lylas Mogk, M.D., an ophthalmologist who practices in Livonia, Mich. These include kale, collard greens and spinach, which are rich in lutein, an antioxidant that research shows may help preserve eye health and deter the risk of macular degeneration. Wolfberries, which are rich in zeaxanthin, also may be beneficial.

To protect the eyes from harmful ultraviolet (UV) rays, you need to make sure your regular glasses and sunglasses have 100% UV protection. "That is completely separate from any tint. The fact is that you can have clear lenses with UV coating that will protect you from the harmful rays of the sun,"

We can benefit from Vitamins A, E, and C for overall eye health care. Vitamin A may help reduce risks of night blindness and cataracts. For people who have Vitamin A deficiency, this deficiency has been implicated in blindness and corneal ulcers .For reducing the risk of macular degeneration and cataracts, Vitamin E plays an important role.

Pressure in glaucoma will be reduced when you take Vitamin C and it also helps slow age related degeneration and provides resistance to cataracts. Vitamins are rich source of antioxidants and they can help in eye health care because antioxidant helps fight the effects of oxidation that contributes to the destruction of healthy tissues and is strongly implicated in macular degeneration

Deficiency of vitamin A can lead to nightblindess, xerophthalmia including dryness of eyes and corneal ulcer formation leading to blindness. Vitamin A helps to prevent the progression of age related macular degeneration (ARMD) which is the leading cause of blindness in the world.

Smokers and those consuming alcohol need extra vitamin supplement as tobacco prevents absorption of vitamin A and alcohol depletes it from the body. However smokers should avoid beta carotene supplement as it increases the risk of lung cancer in them.

Food sources: Carrot, mango, sweet potato, papaya, cod liver oil, liver, beef.
Another way to relax your eyes is to place sliced cucumber on the eyelids while you are relaxing in a bath tub.

Try taking short breaks after long hours of working. It is better to do few small eye exercises like blinking eyes several times, rolling the eyeballs while keeping your eyes closed.

Try looking at a distant object in your office or somewhere outside after long working hours. This would help you in improving your eyes focus.

Don't keep your eyes focused in one place for a sustained period of time. Change your focus. Look up out a window periodically when you're doing close work, to give your eyes a break. Sustained contraction of the eyes can also lead to a contraction of your upper body and neck. Don't stare continuously without breaks, as that causes tension on the visual system, and can contribute to vision problems.