A diabetes educator is teaching a group of adults about the risks to vision that result from poorly controlled blood glucose lev
els. Which of the following pathophysiologic processes underlies the vision loss associated with diabetes mellitus?a) Increased blood glucose levels cause osmotic changes in the aqueous humour.b) Blood vessels supplying the retina become weak and bleeding occurs.c) Diabetes is associated with recurrent corneal infections and consequent scarring.d) Diabetes contributes to increased intraocular pressure.
Answer:b) Blood vessels supplying the retina become weak and bleeding occurs.
Explanation:
Diabetes milletus affects the blood vessels of the light sensitive cells of the retina. Thus the blood supply to retina stops. This leads to the loss of vision and blindness in adults. This is because of the uncontrolled blood sugar levels in case of diabetes milletus.
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