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OBJECTIVE: To investigate the effect of different viscoelastic substances on intraocular pressure (IOP) after phacomulsification. METHOD: The IOP was measured in 90 eyes at two hours after the operation with three kinds of viscoelastic substances (Healon-GV, IVIZ, Viscoat). RESULTS: The positive rate of IOP (> 21 mmHg) is significantly different between the group of Healon-GV and Viscoat (X2 = 3.668, single-side p = 0.047 < 0.05, dual-side p = 0.023 < 0. 05). There was a significant difference between IVIZ and Viscoat(X2 = 5.963, single-side p = 0.015 < 0.05, dual-side p = 0.030 < 0.05). There is no significant difference between Healon-GV and IVIZ (X2 = 0.577, p > 0.05). CONCLUSIONS: Viscoat is a viscoelastic substance with lower viscosity and higher divergence. It is difficult to draw from the anterior chamber. Comparing the Viscoat's group with the other groups, the case of high IOP at two hours after the operation obviously increase. It should be examined more closely. LA: Chinese
Dr. J. Zeng, Zhuhai Gongbei Hospital, Zhuhai 519020, China
12.12.3 Phacoemulsification (Part of: 12 Surgical treatment > 12.12 Cataract extraction)