Visual screening is necessary among pre-school children as they found themselves in a critical period of visual developement. To date, there are no national vision screening program that has been implemented nationwide. Vision is a pilot feasibility multicentric cluster study comparing the sensitivity of "AFSOP 3 dimensional visual screening protocol in a population of 3 to 4-year-old pre-school children conducted in 4 kindergarten preschools in Paris with gold-standard ophthalmic examination confirmation.

Visual screening is necessary among pre-school children as they found themselves in a critical period of visual developement. To date, there are no national vision screening program that has been implemented nationwide. Methodology: The "Association Française de Strabologie et d'Ophtalmologie Pédiatrique" AFSOP proposed criteria based on a 3-dimensions visual screening to assess whether or not a child presents risk factors of amblyopia such as ametropia, strabismus and anisometropia. Vision is a pilot feasibility multicentric cluster study comparing the sensitivity of "AFSOP 3 dimensional visual screening protocol in a population of 3 to 4-year-old pre-school children conducted in 4 kindergarten preschools in Paris with gold-standard ophthalmic examination confirmation. Expected results: We assume that a vision screening operated with the AFSOP 3 dimension screening recommendations and conducted by paramedical actors such as orthoptists will prove more sensitive and easier to implement on a national scale.

Inclusion Criteria:

• Children aged 3 to 4 years
• Enrolled in kindergarten in the first section
• In the 19th district of Paris
• Who should benefit from visual screening via the school medical service

Exclusion Criteria:

• Children who do not speak French
• Children who are physically or cognitively unable to participate in the screening