re: John F. LaBranche, d.o.b. 12-04-1944 Richard F. Lewis, M.D. Massachusetts Eye and Ear Infirmary 243 Charles Street Boston MA 02114 Dear Dr. Lewis: .PP When Mr. LaBranche came for a regular glaucoma check today, he asked me to send you a report about the condition of his eyes. He explained to me that the unsteadiness when walking which he has been noticing for several years appears to be progressing rapidly and Mr. LaBranche is concerned that by next year, he might not be able to walk at all. .PP Mr. LaBranche has been coming to see me for severe bilateral open angle glaucoma since 1983. In the left eye he had cataract extraction combined with filtering surgery in 1995. He presently is taking pilocarpine 4% OD q.i.d., apraclonidine OD b.i.d., Alphagan OD b.i.d., Betoptic OD b.i.d., Xalatan OD h.s., and acetazolamide 125 mg. q.i.d. Mr. LaBranche also uses Polysporin eye ointment OS q.d. Mr. LaBranche's bronchial asthma seems not to be aggravated by the beta-blocker. Do you think it likely that any of the medications he is taking might be contributing to Mr. LaBranche's unsteadiness? .PP Examination today demonstrates visual acuity OD 20/30, OD 20/50. Applanation tension OD 10, OS 7. Visual fields show that the right eye has a superior Bjerrum scotoma with constriction of the upper nasal field. The left eye has only a small central field remaining. Both eyes are white and quiet. The corneas are clear, the anterior chambers, deep and clear. The pupil OD is constricted to 2 mm. The pupil OS is 5 mm and fixed. On mydriatic exam, both discs are seen to be atrophic and excavated, the left, which is totally cupped, more so than the right. I could see no abnormalities of vessels or maculas. .PP Much of the field loss in the right eye occurred three years ago when Mr. LaBanche interrupted treatment for almost a year and tension OD was markedly elevated. The field loss OS, however, progressed markedly even after the pressure was lowered by successful surgery. I had suggested to Mr. LaBranche the option of obtaining neurological consultation and possibly imaging studies of the anterior fossa to exclude disease other than glaucoma that might be contributing to the field loss, a course of action that was precluded at the time by financial considerations. .nf Sincerely yours, Ernst J. Meyer, M.D.