Lin Li1, Lian-man Xie, Bin Yang, Ying Deng. 1. Department of Ophthalmology, Zhuzhou 331 Hospital of PLA, Zhuzhou 412002, China. eritali@263.net
Abstract
OBJECTIVE: The corneal thickness was measured in and after in situ keratomileusis (LASIK) to investigate the accurate ablation depth on cornea during the operation and the possible mechanism of myopic after operation. METHODS: From August 1999 to June 2000, 650 myopia patients were treated by LASIK. The changes in cornea thickness were measured before, during and 1 week, 1, 3, 6 and 12 month after the surgery. RESULTS: By the measurement of cornea thickness during the operation, the real cornea ablated thickness was (32.15 +/- 7.23) micro m different from the expected value. Central thickness of the cornea and the refraction could be stable in six months after the operation. CONCLUSIONS: The cornea thickness and the refraction would be stable in six months after the operation. Age of the patients is the key factor that influences the stability of ocular refraction.
OBJECTIVE: The corneal thickness was measured in and after in situ keratomileusis (LASIK) to investigate the accurate ablation depth on cornea during the operation and the possible mechanism of myopic after operation. METHODS: From August 1999 to June 2000, 650 myopiapatients were treated by LASIK. The changes in cornea thickness were measured before, during and 1 week, 1, 3, 6 and 12 month after the surgery. RESULTS: By the measurement of cornea thickness during the operation, the real cornea ablated thickness was (32.15 +/- 7.23) micro m different from the expected value. Central thickness of the cornea and the refraction could be stable in six months after the operation. CONCLUSIONS: The cornea thickness and the refraction would be stable in six months after the operation. Age of the patients is the key factor that influences the stability of ocular refraction.