The auther had conducted trabecule 4omy ab externo on the 20 eyes in various types of glaucoma The results have been successful for the 15 eyes ( 75% of the cases), but the results of 5 eyes were unsuccessful after the -operation. One of the 5 failed cases, is considered due. to the failure of control in ocular. pressure which was the complicated glaucoma caused by trauma. The remaining 4 cases failed were in,, the group of hypotension. It is considered highly successful in various types of glaucoma( open angle glaucoma, closedangle glaucoma, secondary glaucoma, aphakic glaucoma and congenital glaucoma).
It is concluded that trabeculectomy is -a safe operation for glaucoma without any complication. This is very advantageous operation which can apply modified methods in surgical technique.
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