Common causes of amblyopia are:

• Refractive error: Significant myopia (short-sightedness), hyperopia (long-sightedness), or astigmatism in one or both eyes can cause defocused images, disrupting normal vision development which relies on clear image stimulation on the retina.
• Strabismus (Squint): If one eye consistently turns or turns most of the time, the brain favors the straight eye, leading to amblyopia in the turned eye.
• Vision Deprivation: Obstructions that prevent light from entering the eye, such as a droopy eyelid or cataract, can interfere with normal vision development..