Techniques and optometric tools for visual training in strabismus for preschool children

A healthy binocular vision offers perceptual skills absolutely necessary for a normal life: depth perception and stereoscopic vision. For this to happen, it is important to conduct an examination from the youngest ages. Any deprivation of visual stimulus in this critical period of development can lead to strabismus, amblyopia or abnormal retinal correspondence which compromises the binocular vision. As a result, visual therapy can be defined as a series of exercises that engage the eyeballs and the brain. The subject recovers or develops normal binocular vision skills through progressive therapeutic procedures in which are used a wide variety of tools and devices. This paper presents two of uncommon optometric techniques which can be applied at preschool children.