Influences on Astigmatism and Corneal Endothelium Using Two Different Incision Sizes and Mode of Phacoemulsification. |
Kyung Sup Shin, Jong Eun Lee, Si Hwan Choi |
1Department of Ophthalmology, Chungnam National University School of Medicine, Daejeon, Korea. shchoi@cnu.ac.kr 2Chungnam National University Research Institute for Medical Sciences, Daejeon, Korea. |
두 가지 절개창 크기와 초음파수정체유화방식이 수술유발난시도와 각막 내피에 미치는 영향 |
신경섭1⋅이종은1⋅최시환1,2 |
Department of Ophthalmology, Chungnam National University School of Medicine1, Daejeon, Korea Chungnam National University Research Institute for Medical Sciences2, Daejeon, Korea |
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Abstract |
PURPOSE To compare surgically induced astigmatism and influences on the corneal endothelium in phacoemulsification by Ozil(R) and Hyperpulse mode of Infiniti(R) using 2 different corneal incision lengths of 2.2 mm and 2.8 mm. METHODS: The patients were grouped by the mode of phacoemulsification and incision size as follows: Ozil(R) mode with 2.2 mm incision group (n = 29), and 2.8 mm incision group (n = 30); Hyperpulse mode with 2.2 mm incision group (n = 29), and 2.8 mm incision group (n = 30). The surgically induced astigmatism, central corneal thickness and endothelial cell density were measured up to 2 months after surgery and the efficiency of 2 modes compared by measuring average phacoemulsification times. RESULTS: There was no significant difference in the surgically induced astigmatism, central corneal thickness, endothelial cell density, best corrected visual acuity and average phaco power among 4 groups. The cumulated dissipated energy (CDE) using Ozil(R) mode was lower than Hyperpulse mode in the group of nuclear sclerosis grade 1 and 2. CONCLUSIONS: Two different modes of phacoemulsification using Ozil(R) and Hyperpulse mode, and different incision sizes of 2.2 mm and 2.8 mm in Infiniti(R) showed no significant difference in the endothelial cell density or the surgically induced astigmatism up to 2 months after surgery. Phacoemulsification using Ozil(R) mode is considered more efficient in low grade nuclear sclerosis cataract. |
Key Words:
Corneal endothelium;Hyperpulse;Incision;Ozil(R);Surgically induced astigmatism |
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