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Saturday, October 13, 2012
Maintain Good Eye Health According to Age - Eyes are one of the organs that are vital and useful for our daily life - days. but with increasing age the eyes definitely will decrease according to our age and to reduce this risk needs to do to maintain eye health care or periodically. Good vision is a key productivity. Unfortunately, the condition can worsen eyesight as you age. Habits and maintain a healthy nutrition is essential for eye condition is maintained.
The outermost part of the eye is the cornea, allowing light spherical bulge can enter the eye. The light then passes through the pupil, transparent space located in the center of the iris. Behind the lens of the eye pupils are connected to the zonules, functioning muscle fibers tighten and loosen the focus.
The light coming through the lens and the retina, the tissue at the back of the eye. The retina then sends signals through the optic nerve to the brain to translate what is seen by the eye.
Age 0 to 30 years
When born, the lens inside the eye color is generally clear and flexible. Zonules connected with eyepiece is still strong.
As you age, the lens becomes less flexible, and zonules ineffective and require corrective lenses. If the eyeball is too long, there will be nearsighted.
If the eye is rather short, it happens farsightedness. Each time felt a change of vision, you should immediately meet with an eye doctor.
To avoid damage to eyesight, eye exercises eye doctor as directed. Get used to make a habit of reading and watching TV sound.
Lutein is found in green leafy vegetables such as spinach and kale is one of the antioxidant protective eyewear. Sweet corn, peas and broccoli also contain lutein.
Vitamin A is essential for healthy vision and is found in orange and yellow vegetables such as carrots and squash. Fruits and vegetables also provide essential vitamins C, other antioxidants are good for the eyes.
Minimum of 40 years
"This is the age when people begin to lose the ability to focus on close-range vision. Condition is called presbyopia," said Dr. Andrew Iwach, spokesperson for the American Academy of Ophthalmology and executive director of the Glaucoma Center of San Francisco.
The reason is that the lens retracts, harder and weakened zonules. To correct your vision, use reading glasses. How fast is the occurrence of presbyopia different for each person.
"If you always have perfect vision, reading glasses may be used only at the early age of 40 years. Persons who have nearsightedness is more resistant to interference and often do not notice changes in vision due to age presbiopi reach the end of 40 years," said Jill Koury, assistant professor of ophthalmology at the University DukeEye Center, in Durham, North Carolina.
If you experience nearsightedness, reading glasses may need to be made at the age of 30 years. Age is also a good time to test a comprehensive vision. The doctor will test the pressure in the eyes and optic nerves checked to see if the nerve is still intact.
Age of 50 years and over
At this age, the lens hardens and may increasingly need to wear corrective lenses is strong. Age is also at risk of experiencing eye diseases as follows:
1. Cataracts.
Occurs when the lens of the eye becomes cloudy. More than 20 million Americans have cataracts. The main cause of this disease is aging. Smoking and exposure to sunlight also triggers cataracts. If left untreated, can lead to blindness.
Researchers in the Blue Mountains Eye found that vitamin B, folic acid and vitamin B12 reduces the risk of cataract formation. Research also suggests that consuming omega-3 fatty acids every day can reduce the risk of cataracts.
2. Glaucoma.
The disease is related to the pressure that forms in the eye causing damage to the optic nerve. Glaucoma causes loss of vision slowly and eventually lead to blindness. This disease is one of the most common causes of blindness worldwide.
3. Damage to the macula.
The macula is a part of the retina. The macula can be corrupted due to genetic or environmental factors that lead to impaired vision.
Initial signs are blurred vision. Damage to the macula is the leading cause of vision loss in people over the age of 65 years. Exposure to ultraviolet light (UV) can accelerate damage to the macula same as cigarettes.
The study found that the combination of supplements of vitamin C, beta carotene (vitamin A-forming), vitamin E and zinc can reduce the risk of damage to the macula.
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