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.
Some of the most common visual impairments that can cause low vision include the following: 1  Age-Related Macular Degeneration (AMD/ARMD): AMD is a leading cause of vision loss among Americans over age 60. It accounts for nearly half of all low vision cases. It is caused when the part of the eye responsible for sharp, straight-on vision â the macula â breaks down and causes a loss of central vision.