Abstract
One of the greatest advances in ophthalmology during the last thirty years has been the sclerectomy form of operation for chronic glaucoma. Its advantages are now generally conceded, though the exact type of operation has not been agreed on. A consideration of this phase of the question of glaucoma is best served by a presentation of a single operator's experience. For this reason I have selected two hundred successive cases from my private records during the past twenty years, and the subsequent course was noted in as many of them as possible. The operations practiced were the Lagrange, trephining, iridectomy, cyclodialysis and iridotasis. SUMMARY OF CASES The table shows that ninety-five Lagrange operations were performed, with success in eighty-five. In ten cases, filtration was not reestablished, and tension returned. In two of these ten cases trephining was then successfully practiced, and in one, cyclodialysis, but without a permanent result.

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