Title: A clinical study between laser in situ keratomileusis and corneal wavefront aberrations guided laser in situ keratomileusis on correcting myopir
Abstract: Objective To evaluate the visual quality after corneal wavefront aberrations guided laser in situ keratomileusis (CW-G LASIK) on correcting myopia. To present the changes on contrast sensitivity (CS), glare sensitivity (GS) and root mean square (RMS) of coma and spherical after CW-G LASIK. Methods Two different cases were presented-1) LASIK; 2)corneal wavefront aberrations guided LASIK. All procedures were performed with the Esiris T excimer laser system and Moria LSK-ONE microkeratome. The OPTIKON 2000 Keratron Scout device was used for topographies and corneal wavefront measurements. VectorVion CSV-1000 HGT was used to evaluate the CS and GS. The optical zone was 6.0~7.00mm. Wavefront aberrations were analyzed for 6.0mm pupil zone. Pre-and postoperative CS, GS and corneal wavefront aberrations were analyzed. Results The recovery of postoperative UCVA after corneal wavefront aberrations guided LASIK and LASIK returned to the preoperative level. The postoperative CS and GS of each space frequency decreased after CW-G LASIK and LASIK, but the CS and Gs were better than LASIK, especially at 6, 12, 18c/d space frequency. The postoperative RMS of coma and spherical increased after both surgeries, especially after LASIK. Conclusions CW-G LASIK is effective on correcting myopia. It can improve the CS and GS, decrease the RMS after surgery. It is stable and safe.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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