Amblyopia, also known as lazy eye, is a condition that occurs when one eye develops good vision while the other does not. The eye with poorer vision is called “amblyopic”. Usually, only one eye is affected by amblyopia. The condition is common, affecting approximately 2 or 3 out of every 100 people. The best time to correct amblyopia is during infancy or early childhood. Patching the better seeing eye or using an eye drop (Atropine) are the cornerstones of amblyopia treatment after glasses have been prescribed in cases where a significant refractive error exists.