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.
Causes. Sudden vision loss is usually attributable to ischemia, or a reduction of the amount of oxygen and nutrients to the tissues of the eyes, resulting in temporary or permanent damage to the retina. It is like a stroke of the eye. Ischemia has several causes and can appear in different forms.