The old man's eyes are blurred. What's going on?

There are many reasons why the elderly show blurred vision. Cataracts, eyes, age-related macular degeneration, etc. can lead to vision decline. It is suggested that they can go to the hospital in time and make clear the cause through slit lamp examination. Cataract caused vision decline, need to reach maturity, after surgery for treatment, and eyes mainly manifested as not clear to see near objects, see distant objects will not lead to obvious impact, need to wear glasses to make the eye corrected vision normal, fundus macular degeneration belongs to the elderly common cause vision decline disease, dry macular degeneration performance for progressive vision decline, there is no good treatment method.