| The Effect of The IOL Position Studied by Using Scheimpflug Camera to The Postop Astigmatism. |
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Tae Bum Jung, Woo Jae Lee, Kyung Hwan Shyn |
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Department of Ophthalmology, School of Medicine, Chung-Ang University, Seoul, Korea. |
| Scheimpflug 사진기로 측정된 인공수정체의 위치가 술후 난시 변화에 미치는 영향 |
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정태범(Tae Bum Jung),이우재(Woo Jae Lee),신경환(Kyung Hwan Shyn) |
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| Abstract |
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Management of surgically induced astigmatism is the major problem for surgeons implanting intraocular lenses. Besides corneal astigmatism, the fixation status of the intraocular lens(IOL) may contribute to postoperative astigmatism. This study was undertaken to analyze whether the variable factors such as fixation status, IOL type, and capsulotomy method affect tilting and decen tration of IOL. The tilting angle and decentration of the IOL were measured by image-processing technique using computerized Scheimpflug camera. The average tilting angle was 4.30 +/- 2.21 degree. The average decentration was 0.44 +/- 0.36mm from the corneal center. Based on these data, the astigmatic error induced by the tilting and/or decentration of the implanted IOL was calculated as within 0.1 diopter. Haptic fixation and designs were statistically significant for IOL posit ion but tilting and decentration were not significantly associated with capsulotomy method, agegroup, sex, and postoperative day. |
| Key Words:
Scheimpflug camera;Decentration;Tilting |
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