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Abstract #46784 Published in IGR 13-3
Effect of phacoemulsification on intraocular pressure
Jamil AZ; Iqbal K; Rahman FU; Mirza KAJournal of the College of Physicians and Surgeons Pakistan 2011; 21: 347-350
Objective: To evaluate the effect of phacoemulsification on intraocular pressure in normal eyes and glaucomatous eyes. Study Design: Quasi-experimental study. Place and Duration of Study: Layton Rehmatulla Benevolent Trust, Eye and Cancer Hospital, Lahore, from September 2009 to August 2010. Methodology: The study subjects were adult patients with cataract and open or occludable angle, with or without raised intraocular pressure, who underwent phacoemulsification. Patients having any corneal pathology, synecheal angle closure more than 180 degrees, inflammatory eye disease, previous ocular surgery including YAG iridotomy and endothelial cell density less than 1500/mm(2) were excluded from the study. They were followed-up for one year. Outcome measures included intraocular pressure, angle width, visual acuity and number of antiglaucoma medicines. Results were compared using chi-square test for proportions and t-test for mean values. Results: There were 50 (41%) males and 72 (59%) females with 80 (65.6%) right and 42 (34.4%) left eyes. Mean age was 56.4(plus or minus)8.57 years. Pre-operatively 52 patients had open angles while 70 patients had occludable angles. Postoperatively 96 patients had open angles and 26 patients had occludable angles. Mean pre-operative IOP was 25.70(plus or minus)7.79 mmHg, which was decreased to 17.44(plus or minus)2.8 mmHg (p < 0.001) at final follow-up visit. Number of mean anti-glaucoma agents decreased from 1.12(plus or minus)1.30 pre-operatively to 0.62(plus or minus)0.92 at final follow-up visit. Mean pre-operative visual acuity was 0.4(plus or minus)0.19 that increased to 0.86(plus or minus)0.15. Conclusion: Phacoemulsification resulted in reduction in intraocular pressure in normal as well as glaucomatous eyes and it significantly reduced the need for anti-glaucoma medicines.
A.Z. Jamil. Layton Rehmatulla Benevolent Trust (LRBT), Eye and Cancer Hospital, 436 A-1, Township, Lahore, Pakistan.
Classification:
12.12.3 Phacoemulsification (Part of: 12 Surgical treatment > 12.12 Cataract extraction)
6.1.3 Factors affecting IOP (Part of: 6 Clinical examination methods > 6.1 Intraocular pressure measurement; factors affecting IOP)
13.2.1 IOP (Part of: 13 Therapeutic prognosis and outcome > 13.2 Outcome)
