Excimer retreatment for undercorrection or regression after laser in situ keratomileusis

• Published in: Chung-hua yen k'o tsa chih Vol. 38; no. 2; p. 72
• Main Authors: Qi, Hong, Xia, Yingjie, Chen, Yueguo, Zhu, Xiu'an
• Format: Journal Article
• Language: Chinese
• Published: China 01.02.2002
• Subjects: Adult; Astigmatism - etiology; Astigmatism - pathology; Cornea - pathology; Cornea - surgery; Female; Follow-Up Studies; Humans; Keratoconus - etiology; Keratomileusis, Laser In Situ - adverse effects; Keratomileusis, Laser In Situ - methods; Male; Middle Aged; Myopia - complications; Myopia - surgery; Postoperative Complications; Refraction, Ocular - physiology; Retreatment - adverse effects; Retreatment - methods
• ISSN: 0412-4081

To evaluate the results of excimer retreatment for undercorrection or regression after laser in situ keratomileusis (LASIK). Eight-eight eyes received retreatment for undercorrection or regression after first LASIK (FLASIK) in 2 149 eyes in our photorefractive keratotectomy (PRK)/LASIK center from March, 1996 to July, 1999. They were divided into 2 groups according to their degrees of pre-FLASIK myopia spherical equivalents. Group I was </= 10.00 diopters (D) (41 eyes); group II was > 10.00 D (47 eyes). We analyzed the factors of FLASIK which led to the re-LASIK (RLASIK), and observed the mean spherical equivalents (MSE), the ratio within +/- 1.00 D of emmetropia, the uncorrected visual acuity (UCVA), the best corrected visual acuity (BCVA) and the complication after RLASIK for at least 1 year follow-up study. The retreatment ratio was 4.1% among the 2 149 eyes. In group II, the ratio was 2.3 times that of the group I. In the comparison with other eyes, the eyes received RLAISK had no difference in sex, later