Question

Roger is legally blind. His vision impairment is a complication of diabetes mellitus. Can you describe what structural changes in Roger's eyes have caused his blindness? As you were helping him cross the street, a fellow pedestrian suddenly stumbled into your path . Without any signal from you, Roger jumped back to avoid hitting the other person. If Roger is blind, how could he have reacted this way ?

Answer 1

Answer:

He's experiencing diabetic retinopathy, the change is damage to the blood vessels in the tissue at the back of the eye (retina)

Explanation:

People who are blind or become blind typically have a more nuanced sense of hearing. especially when it comes to tracking moving items (think of crossing the road using sound alone)