What is the difference between Limited Vision and Blindness?
One way of looking at it is…if corrective lenses cannot provide 20/40 sight in at least one eye, you may have limited vision. And keep in mind that those who are legally blind–who test 20/200 or less in the better eye after the best correction, or have a field defect in which the widest diameter of the visual field is no greater that 20 degrees–also have limited vision. We like to think that being visually impaired means you are “A Little Bit Blind.” And chances are you may be more sighted than not. Consider that the leading cause of limited vision and legal blindness is macular degeneration which, alone, will NEVER cause complete vision loss. Most cases of diabetic retinopathy do not produce total blindness, although the disease is the leading cause of profound vision loss among young working adults in the United States. Glaucoma, the second leading cause of vision loss in the world, when successfully treated, does not lead to total blindness. Retinitis pigmentosa, in the majority
