Investigate the symptoms and causes of cataracts! When the eye ages in their 40s and 50s, their eyesight seemed to deteriorate little by little, but there may be various symptoms such as the appearance of a faint condition at close range. When the close distance looks thin, the progression of presbyopia can be suspected, and … 백내장 증상과 원인에 대해서 알아보고 계속 읽기