Comparision of Corneal Endothelial Change in Femtosecond Laser and Microkeratome LASIK.

Kim, Sun A; Choi, Eue Su; Lee, Tae Hun; Park, Jong Il; Lee, Kyung Hun

Original Article

Journal of the Korean Ophthalmological Society 2005;46(12):2059-2064.
Published online December 31, 2005.

Comparision of Corneal Endothelial Change in Femtosecond Laser and Microkeratome LASIK.

Sun A Kim, Eue Su Choi, Tae Hun Lee, Jong Il Park, Kyung Hun Lee

Sungmo Eye Hospital, Busan, Korea. sungmo@sungmo.co.kr

펨토초 레이저와 미세각막절삭기를 이용한 라식에서 각막내피세포의 변화 비교

김선아,최은수,이태헌,박종일,이경헌

Sungmo Eye Hospital, Busan, Korea

Correspondence: Sun-A Kim, M.D.

Abstract

PURPOSE
To compare the corneal endothelial cell change in Femtosecond laser and microkeratome LASIK operation. METHODS: This study involved 31 eyes (16 patients) that had LASIK using a femtosecond laser (group 1). The control group comprised 32 eyes (16 patients) that had conventional LASIK using microkeratome. We measured the endothelial cell using a non-contact specular microscope preoperatively and at postoperative 1, 2 and 6 months. RESULTS: The preoperative and postoperateive 1, 2, and 6 months cell densities were, respectively: (group 1) 3039+/-335.2, 3012.9+/-373.0, 3008.2+/-240.2, 3009.1+/-250.5; (group 2) 2984.8+/-334.4, 2972.7+/-290.0, 2968+/-323.2, 2968+/-319.1. The coefficients of variation were, respectively: (group 1) 32.6+/-5.3, 33+/-7.2, 32.2+/-5.9, 31.7+/-5.8; (group 2) 32.3+/-5.3, 33.6+/-6.2, 35.5+/-4.8, 34.1+/-5.1. Respective hexagonality measurements were: (group 1) 59.2+/-11.7, 56+/-12.1 55.1+/-13.5, 57.2+/-11.6; (group 2) 57.6+/-9.8, 57.4+/-10.7, 56.5+/-11.6, 57.1+/-11.1. CONCLUSIONS: There was no statistical difference in corneal endothelial change between the two groups (p>0.05). LASIK using the femtosecond laser seemed to be a safe choice when considering corneal endothelial change.

Key Words: Corneal endothelium;Femtosecond laser;Konan;LASIK;Microkeratome