Explain how vision is affected by the loss of one eye. Explain how hearing is affected by the loss of one ear. In reality, how disadvantaged are people who are blind in one eye or deaf in one ear? Would loss of half the tongue or half the olfactory epithelium have comparable effects on those systems? Explain.

Question

What will be an ideal response?

Answer 1

The overlap between the visual fields is required for assessment of depth (three -dimensional assessment). Thus, individuals who have lost an eye would have issues with depth perception. Binaural hearing provides for accurate sound localization. People who have lost hearing in one ear are poorer at sound localization. Comparable losses of sensory tissues for taste or smell would have far less impact on those sensations because there is no similar central comparison of inputs from the two sides.