... that has lasted months. Xrays show infiltration in lower lobs with diagnosis of pneumonia, but the ophthalmologist suspected it was the drug. Is this reversible? Diagnosis is tentatively COPD. Two Z packs and a round of prednisone have only had a little effect . Also severe fatigue. He was supposed to use three drops per day and was using four for 15 months. We can't get an appointment with a pulmonary specialist tor three months. The drops are prescribed for open angle glaucoma.