What is the term for the inability to see normally in one eye?

The term for the inability to see normally in one eye is amblyopia. Amblyopia is often referred to as "lazy eye," where one eye fails to achieve normal visual acuity, even with prescription glasses or contact lenses. This condition typically develops in childhood and is the result of poor or abnormal visual development, often caused by an imbalance in the way the two eyes work together.

In contrast, astigmatism refers to a refractive error caused by an irregular shape of the eye's cornea or lens, leading to blurred vision. Strabismus is the misalignment of the eyes, which can cause double vision or issues with depth perception. Presbyopia is an age-related condition where the eye gradually loses the ability to focus on nearby objects, commonly beginning in middle age. Each of these conditions affects vision but does not specifically denote the inability to see normally in just one eye as amblyopia does.