adjective, stupider, stupidest. 1. lacking ordinary quickness and keenness of mind; dull. 2. characterized by or proceeding from mental dullness; foolish; senseless: a stupid question. 3. tediously dull, especially due to lack of meaning or sense; inane; pointless: a stupid party.
On this page: Video on blurry vision causes â¢ When blurry vision is serious. Blurry vision is the loss of sharpness of eyesight, making objects appear out of focus and hazy. The primary causes of blurred vision are refractive errors â nearsightedness, farsightedness and astigmatism â or presbyopia.
Refractive errors include near sighted, far sighted, presbyopia, and astigmatism. Cataracts are the most common cause of blindness. Other disorders that may cause visual problems include age related macular degeneration, diabetic retinopathy, corneal clouding, childhood blindness, and a number of infections. Visual impairment can also be caused by problems in the brain due to stroke, prematurity, or trauma among others.