What is the meaning of heteropsia?

The term "heteropsia" specifically refers to the condition where there is unequal vision in the two eyes. This means that one eye may perceive objects differently compared to the other, whether in terms of clarity, size, or overall visual perception. The word is derived from the Greek terms "hetero," meaning different or other, and "opsia," which relates to vision. This condition can arise from various underlying issues, such as differences in refractive error, cataract presence, or other ocular abnormalities.

Understanding this definition is crucial for recognizing how visual disparities can impact an individual's overall vision and necessitate appropriate interventions or corrections. While the other options refer to specific vision conditions—color blindness, nearsightedness, and farsightedness—these do not align with the definition of heteropsia, which focuses solely on the comparative vision quality between the two eyes.