Turkish Abstract Abstract PDF Similar Articles

¹Karaelmas Üniversitesi Tıp Fakültesi, Göz Hastalıkları Anabilm Dalı, Zonguldak, Yrd. Doç. Dr.
²Karaelmas Üniversitesi Tıp Fakültesi, Göz Hastalıkları Anabilm Dalı, Zonguldak, Asist. Dr.
³Karaelmas Üniversitesi Tıp Fakültesi, Göz Hastalıkları Anabilm Dalı, Zonguldak, Prof. Dr. Purpose: To investigate relationship between preoperative lens thickness and postoperative intraocular pressure change after phacoemulsification surgery.
Materials and Methods: Patients undergoing phacoemulsification surgery are prospectively evaluated. Lens thickness was measured preoperatively with A-mode ultrasound and intraocular pressure (IOP) was measured preoperatively, postoperatively at 1^st week, 1^st month, 3^rd month, and 6th month with Goldmann applanation tonometry. Preoperative lens thickness and postoperative IOP values were analyzed with Spearman rank correlation test. Preoperative and postoperative IOP values compared with Wilcoxon paired samples t-test. Significance of IOP changes occuring up to 6th month after surgery was tested using the Friedman test.
Results: Sixty-eight eyes of 64 patients underwent uncomplicated phacoemulsification surgery. The patients' age ranged between 50 to 85 years (mean: 67±9) and lens thickness measurements were in the range of 3.03- 4.80 mm (mean 4.09±0.44 mm). Mean preoperative IOP was 15.79±2.74 mmHg. IOP measurents postoperatively were 12.07±2.46 mmHg in the 1^st week, 11.62±2.15 mmHg in the 1^st month, 13.07±2.30 mmHg in the 3^rd month, and 13.66±2.34 mmHg in the 6^th month (p <0.01). The correlation between mean lens thickness and mean postoperative IOP change on the first week, 1^st month, 3^rd month, and 6^th month was found to be insignificant (r=- 0.087, r=-0.087, r=0.98,and r=0.157 respectively, p>0.05 for all ).
Conclusion: In cataractous eyes without glaucoma phacoemulsification cataract surgery induces a small but consistent decrease in IOP, however, the decrease in IOP was found to have no association with lens thickness. Keywords : Lens thickness, phacoemulsification, intraocular pressure, glaucoma