What is Strabismus?
Strabismus is a condition in which the eyes do not properly align with each other when looking at an object.This is one of the most common eye disorders in children, affecting about 4% of children (girls or boys) before 6 years of age . In this eye disorder, one or both eyes may deviate inward, outward, upward, or downward. It is more likely to exist more than one of these eye movement disorders at the same time in a child. The other name of this disease is "Squint" or " crossed eyes". Tehran-Iran Noor Eye Hospital has a super speciality strabismus clinic.
When vision is normal (binocular vision), the two eyes focus on the same spot and the brain combines the images of the both eyes into a single, three-dimensional image which results in depth perception. When one of the eyes is not in its normal visual axis, two different images are sent to the brain. In children with strabismus, the brain will learn to ignore the image of the misaligned eye and only see the image of the healthy straight eye; however, even if there is a double vision at first, it quickly disappears and the child loses depth perception.
Adults with acquired strabismus are often have double vision because their brains receive two images from both eyes and can not ignore the image of the misaligned eye.