Cyclodialysis: A Possible Option to Trabeculectomy in Aphakia and Pseudophakia
Signer T.1, Schipper I.2
1Vistaklinik, Binningen/CH; 2Augenklinik Kantonsspital, Lucern/CH
Purpose: The results of trabeculectomy in aphakia and pseudophakia are usually not as good as with phakic patients. Cyclodialysis might be a more successful operation in these patients.
Method: We studied in a retrospective manner, the clinical records of aphakic or pseudophakic patients that had undergone cyclodialysis for glaucoma in the time between 1998 and 2001. Besides intraocular pressure (IOP) we evaluated the number of medications needed and looked for risk factors. The eyes were divided into two groups: group 1 (n=20) with primary glaucoma (PG) and group 2 (n=9) with secondary glaucoma (SG).
Results: Six months after the operation, the IOP was significantly reduced from the preoperative value of 29.2 mm Hg (SD ± 10.7) to 10.7 mm (SD ± 3.8; P < 0.001). While in PG group the pressure dropped from 28.7 mm Hg (SD ± 11.7) to 11.5 mm Hg (SD ± 3.1; P < 0.001), in the SG group it dropped from 30.3 mm Hg (SD ± 8.0) to 8.6 mm Hg (SD ± 4.7). Twelve months after the operation, the IOP in both groups remained significantly lower than the preoperative value (P < 0.001). IOP could be reduced in 79% of the cases (n=23). In the SG group we observed the largest reduction of IOP (3.4 mm Hg; SD ± 3.0) one day after the operation. However, the rate of success was the lowest (postoperative hypotony with consequently IOP decompensation). Afte
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