How do people know they have bad vision if they’ve never experienced any other form of vision?

Usually the parents of a child can tell by comparison to other children if there might be a vision problem. For most myopic (nearsighted) people, the condition does not start to develop until they are at the age to enter elementary school. Public health nurses are often employed by schools to conduct vision and hearing testing at that age.

_Written by J. Trevor Woodhams, M.D. - Chief of Surgery, Woodhams Eye Clinic