What Causes Lazy Eye? 13 Causes To Consider

Family History

The lazy eye, typically characterized by ocular deviation and reduced binocular vision, can be passed on from one or two parents to their children. Individuals with a history of lazy eye are more likely to develop other vision issues, including strabismus, also known as squint. Therefore, it is not uncommon to see children with lazy eye and squint.

Numerous studies were conducted to identify the genes responsible for the development of lazy eye. Results show that the genetic component causing lazy eye is mutated genes that disrupt cranial nerve development. The cranial nerve is responsible for controlling eye muscles. Additional findings reveal that developing lazy eye in children does not follow predictable Mendelian dominant or recessive patterns of inherent, but instead is the product of variations in multiple genes working together. 

A child with a family history of lazy eye and exhibiting lazy eye may use a Bangerter filter, an opaque covering that fits on the inside of the eyeglass lens and covers only the dominant eye. This allows the non-dominant eye to receive more visual input, which can help strengthen the eye muscles and improve vision.