Age-related cataracts are mostly found in middle-aged and elderly people over 50 years old, and their incidence increases significantly with age. The lens of our eye is dirty and dirty, and the image is not clear. For our eyes, the lens is aging and degenerating, and the image is not clear. With reduced vision, things around us cannot be seen clearly, which will affect the quality of life to a greater or lesser extent, and we may even lose our eyesight and be unable to take care of ourselves, requiring family members to take care of us at all times; with reduced vision, the risk of suffering from accidents, falls and bruises will also increase, coupled with the high incidence of this disease, cataract is a social problem with great impact.
Risk factors 1. Age: The process of aging is the process of gradual aging of the body. Ophthalmologists often cite the example that “just like people will have gray hair and wrinkles, the lens will also have different degrees of aging and clouding.” –Our conclusion: The development of cataract is like the natural law of life, old age, sickness and death.
2. Ultraviolet light: Long-term exposure of ultraviolet light to eye tissues is a relatively clear cause of cataracts at present. UV light affects the metabolic process of the lens and accelerates the aging degeneration of the lens. In areas with higher altitude and long time high intensity sunlight exposure, such as Tibetan and Yunnan provinces, the incidence of cataract is significantly higher than other provinces. — Our conclusion: Wearing UV-protective glasses for outdoor activities is necessary to prevent and delay cataracts, and sunshades and sun hats can play a similar role.
3. Nutrition: Protein is one of the most important substances in human metabolism. Malnutrition or unbalanced nutrition in human body and low protein intake will affect the normal metabolism of the lens; in addition, cataract and vitamin deficiency are also related, mainly related to the oxidation-reduction process of the body being affected. –Our conclusion: balanced diet, more vegetables and fruits, and vitamin supplementation have a certain effect on cataract prevention.
4. Diabetes: In diabetic patients, blood sugar rises and glucose in the lens increases accordingly. After metabolism, the lens absorbs too much water and the lens fibers become swollen and cloudy, which causes rapid development of cataract. — Our conclusion: diabetic patients should control their blood glucose, normal range and smoothly, which has a certain role in delaying the development of cataracts.
In addition, cataracts can occur at different times because of the different locations and degrees of clouding of the lens, as well as the different working environments and personal habits that affect our sensitivity to visual changes.