It is doubtless true that the perfect operation for glaucoma has not been developed as yet, and the great number of operations that have been and are being used attests this fact. In a brief survey, the broad basal iridectomy devised by von Graefe in 1885 was followed after some twenty years by Lagrange's operation of sclerectomy, which in turn was succeeded in popularity by Elliot's trephine operation. While other procedures, such as cyclodialysis, iridectomy, iridotomy and posterior sclerotomy, have been found useful and sufficient by some ophthalmic surgeons, the trephine operation has withstood the test of time better than any other. We believe it to be right in theory and correct from a mechanical point of view, but, nevertheless, in practical application the operation is followed by many failures, a large percentage of which probably are due to faulty instruments or to ineptness of the operator.
When properly performed,
GREEN AS, GREEN MI. AUTOMATIC TREPHINE FOR GLAUCOMA. Arch Ophthalmol. 1939;21(2):328–330. doi:10.1001/archopht.1939.00860020132009
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