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.
The most common causes of sudden loss of vision are. 1  Blockage of a major artery of the retina (central retinal artery occlusion) 2  Blockage of an artery to the optic nerve (ischemic optic neuropathy) 3  Blockage of a major vein in the retina (central retinal vein occlusion)