[Change of corneal thickness after laser in situ keratomileusis].
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.
Department of Ophthalmology, Zhuzhou 331 Hospital of PLA, Zhuzhou 412002, China. eritali@263.net
Lin
L
Li
Lian-man
LM
Xie
Bin
B
Yang
Ying
Y
Deng
D000367:Age Factors; D003315:Cornea / Q000473:pathology* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D016014:Linear Models; D008297:Male; D011182:Postoperative Care; D012029:Refraction, Ocular; D012737:Sex Factors