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  • Title: [Changes in corneal sensitivity after excimer laser corneal refractive surgeries].
    Author: Yang B, Chen J, Wang Z.
    Journal: Zhonghua Yan Ke Za Zhi; 1998 Jan; 34(1):50-2. PubMed ID: 11877154.
    Abstract:
    OBJECTIVE: To observe and compare the changes in corneal sensitivity after photorefractive keratectomy (PRK) and laser in-situ keratomileusis (LASIK) for myopia. METHODS: PRK was performed on 387 eyes of 231 patients and LASIK was performed on 796 eyes of 482 patients with myopia. Corneal sensitivity was examined preoperatively and 1 week, 1, 3 and 6 months postoperatively. RESULTS: Corneal sensitivity was reduced at the early postoperative stage of both PRK and LASIK. The eyes after PRK showed greater reduction. Corneal sensitivity returned to the baseline levels at 6 months after PRK and 1 month after LASIK. CONCLUSION: The recovery of corneal sensitivity after PRK is slower than that following LASIK.
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