Blue Zones and Centenarians: Ocular Phenotypes of Exceptional Agers
As people age, common eye disorders become more frequent. Major culprits include AMD (a deterioration of the central retina), cataracts (clouding of...
深入研究和专家指南,帮助您保持视觉健康。
As people age, common eye disorders become more frequent. Major culprits include AMD (a deterioration of the central retina), cataracts (clouding of...
Metformin is a widely used diabetes medication that also activates AMP-activated kinase (AMPK), mimics calorie restriction, and can reduce cellular...
Age-related macular degeneration is an eye condition that damages the macula, the small central part of the retina that lets you see fine detail and read. It most often happens in older adults and usually affects both eyes over time, though one eye may be worse than the other. There are two main forms: a slower, more common dry form caused by gradual thinning and buildup of debris, and a faster, less common wet form where abnormal blood vessels leak fluid or blood into the retina. Early signs include blurry or dim central vision, straight lines appearing wavy, and difficulty recognizing faces. Eye doctors diagnose it with a dilated exam and imaging tests that show changes in the retina and macula. Treatments differ by type: lifestyle changes and certain vitamin formulas can slow dry disease, while injections that block abnormal blood vessel growth and sometimes laser treatment can control the wet form. Controlling risk factors—especially quitting smoking, managing blood pressure, and eating a healthy diet—can lower the chance of progression. It matters because this condition is a leading cause of central vision loss in older adults, which can affect reading, driving, and independence. Early detection and regular eye exams give the best chance to preserve vision and plan for adaptive tools if needed.