The validation of a French questionnaire is very important to assess rigorously and objectively the impact of the treatments of strabismus and amblyopia on children quality of life.

Inclusion Criteria:

• children with a status of strabismus or not strabismus made by a specialized ophthalmologist
• children with a status of amblyopia or not amblyopia made by a specialized ophthalmologist
• signed consent of parents

Exclusion Criteria:

• ocular pathology (except for isolated ametropia)
• evolutive paralytic strabismus
• antecedent of surgery for strabismus
• strabismus surgery in the past 6 months
• disease with possible impact on the child's answers, such as severe neurologic troubles)
• poor knowledge of French language

Outpatients of pediatric ophthalmology will be included in the study. 50 patients will be included in each class of age: 3-4 years old; 5-7 years old; 8-17 years old.

For each class of age, 50 children with strabismus or amblyopa will be included, half of which treated by eye occlusion ; and 50 children with no strabismus nor amblyopia, half of which wearing glasses.