What causes a lazy eye?
lazy eye or amblyopia is caused by incorrect stimulation of the nerve connections between the eye and the brain during childhood and early childhood. It is a neurological process where the brain compensates, inhibits or suppresses bad sensory information such as blurry vision. The brain prefers strong signals sent by a healthy eye to the extent that it eventually ignores the signals from the affected eye, which can lead to permanent loss of vision. The lazy eye usually affects only one eye, but it can affect both.
There are a number of eye disorders that can lead to a lazy eye. The most common cause is the strabismic amblyopia, which is sometimes evident from strabism or damage in one eye, but can also be virtually undetectable if it is not an expert. Anisometropic amblyopia is another cause of lazy eye, where there is an refractive error. Variations in the direction of light means that the eyes differ in their ability to concentrate. Ametric amblyopia also with refractive mistakes, but this time it occurs in both eyes.Finally, there is an amblyopy of stimulus deprivation, which is the most precious cause of lazy eye, but often the most serious.
Strabism is the result of inconsistencies in the muscles responsible for the placement of the eyes. As a result, the eyes are unable to coordinate together when they watch the stimulus and either cross or show one eye. This is not to say that the lazy eye and strabism are the same. Constant strabism causes lazy eye when long -term compensation or suppression of poor sensory signals leads to a permanent reduction in vision in the affected eye or eyes.
Anisometropic amblyopia is caused by myopia, long -sided or astigmatism. Refractive errors result in a difference in the direction of light as they pass through the air and eyes. When one eye is affected, the brain will be Eventingals ignore this eye and prefer good. As a result, the affected eye becomes lazy. When the condition is ametropic, refractive chywould be large and affect both eyes. As a result, the vision is constantly blurred.
stimulating deprivation of amblyopia is often the most serious cause of lazy eye, for which the only treatment is often a surgery. This is when the eyes are prevented from seeing a tumor, congenital cataracts or eye diseases such as corneal ulcer. There may have been a certain eye injury or damage by surgery.
Other causes of lazy eye can often be repaired by glasses, spots and eye drops if the problem is caught soon enough. The aim of these procedures is to make the affected eye to function while preventing a good eye. This means that the brain is forced to recognize the affected eye and therefore the nerve pathways are strengthened.