Understanding Visual Impairment: Conditions, Causes, and Support
Understanding Visual Disability
To better comprehend visual disability, it's important to distinguish between related concepts:
Deficiency
A loss or abnormality of psychological, physiological, or anatomical structure or function. Example: An alteration of the cornea.
Disability
A restriction or inability to perform an activity in the manner or within the range considered normal for a human being. Example: Difficulty distinguishing colors or judging the distance of objects.
Handicap
A disadvantage for a given individual, resulting from a deficiency or disability, that limits or prevents the fulfillment of a role that is normal (depending on age, sex, social and cultural factors) for that individual. Example: Being blind in a society not adapted for