A 67yo man has deteriorating vision in his left eye. He has longstanding COPD and is on multiple
drug therapy. What single medication is likely to cause this visual deterioration?
a. B2 agonist
b. Corticosteroid
c. Diuretic
d. Theophylline
Q. 1. What is the key?
Q. 2. What is the cause of deteriorating vision?
Ans. 1. The key is B. Corticosteroid.
Ans. 2. Prolonged corticostiroids [also topical i.e. eye drop] can cause cataract.