What condition is referred to as heteropsia or anisometropia?

Heteropsia, also known as anisometropia, specifically refers to a condition in which there is unequal vision in the two eyes. This condition occurs when each eye has a different refractive power, leading to discrepancies in how each eye sees objects. This can result in difficulties with depth perception and overall visual clarity because the brain receives differing visual information from each eye.

Understanding heteropsia is essential in the context of vision and ocular health, as it highlights the importance of having equal vision between both eyes for optimal visual function. The other conditions listed do not accurately capture the essence of what heteropsia represents. Color blindness pertains to difficulties in seeing colors properly, double vision is characterized by seeing two images of one object, and night blindness relates to an inability to see well in low light. None of these conditions describe the specific issue of unequal vision that is inherent in heteropsia.