He Xiangzhen，Liu Jiayi，Peng Huican，et al.

    Department of Ophthalmology，The Second Affiliated Hospital of NanHua University，Hengyang421001.

    【Abstract】 Objective To evaluate the efficacy，predictability and safety of laser in-situ keratomileusis(LASIK)and photorefractive keratectomy(PRK)for the correction of moderate and high hyperopia.Methods We chose20white rabbits as animal model.The rabbits were divided into two groups according to operation method.Operations were performed with Mulit Scan KERATOM excimer laser.The subjects were randomly divided into two groups.One group was preformed LASIK，the other PRK.Surgery was performed on the right eye of the rabbit to attempt a correction of+5.00D，and the left eye of the rabbit to attempt a correction of+8.00D.The rabbits were examined with videokerˉatoscope and slit-lamp microscope preoperation and in3days，2weeks，1months，2months，3months，6months postopˉeration respectively.At each time of the postoperation examination ......