Causes of Amblyopia
The stronger eye becomes dominant and retains good vision, but in the affected eye, the nerve connections between the brain and that eye fail to develop normally, and the brain learns to ignore visual information from that eye.
The most common causes of amblyopia are:
► Misalignment of the eye or strabismus
► Cloudiness of the normally clear visual pathway, due to abnormalities
► Blockage of an eye due to trauma, drooping eyelid, etc.
► Vision problems such as nearsightedness, farsightedness, or astigmatism, if uncorrected, can cause amblyopia
► Trauma to the eye or head
► Diseases that affect the eye, such as cataracts
► Some psychiatric conditions
► Excessive use of tobacco, alcohol or other drugs