Following is a partial list of symptoms in children and adults which indicate the need for a complete vision analysis:
- Headaches
 - Blurred or double vision
 - Crossed or turned eyes
 - Abnormal Blinking or extensive eye rubbing
 - Dislike or avoidance of close work
 - Lack of Concentration
 - Placing head close to a book when reading or writing
 - Frowning while looking at the TV or blackboard
 - Difficulty in reading small and fine print
 - Difficulty adjusting focus between near and far objects