The results of combined cataract extraction and trabeculectomy using separate incisions

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Abstract
A method of combined cataract extraction with posterior chamber intraocular lens and trabeculectomy using separate incisions was tested in 44 operations on 38 patients. The mean preoperative intraocular pressure (IOP) of 28.1 +/- 11.7 (range 12 to 56) mmHg on maximum medication was lowered to 13.9 +/- 3.4 (9 to 23) mmHg at one year, with half the eyes still requiring topical medication. The IOP was 40 mmHg or more preoperatively in eight eyes and 20 mmHg or more in only two patients at one year. There were no rises in IOP above 20 mmHg in the early postoperative period (days 1 and 2). Visual acuity was 6/9 or better in 27 and 6/12 in three eyes. There was an expulsive haemorrhage in one case, rupture of the posterior capsule in two eyes and a choroidal detachment in one eye, but no flat anterior chambers. The two-incision method allowed placement of an intraocular lens with good post-operative pressure control.