Title: Clinical study on the femto-LASIK and LASEK for the residual refractive errors and myopic regression after LASIK
Abstract: Objective
To compare the clinical outcomes of the femtosecond laser-assisted laser insitu keratomileusis (femto-LASIK) and laser-assisted subepithelial keratomileusis (LASEK) for the residual refractive errors and myopic regression after LASIK.
Methods
Ninety patients (180 eyes) with residual refractive errors and myopic regression after LASIK were randomly divided into two groups, Group A (45 patients, 180 eyes) and Group B (45 patients, 180 eyes). The patients were carried with the femto-LASIK in Group A and LASEK in Group B, respectively. Then, visual acuity, refraction, intraocular pressure, topography, contrast sensitivity and ocular higherorder aberration were evaluated and compared between two groups during the 6month followup.
Results
There were statistically significant improvements in distance visual acuity and refraction in both groups postoperatively (P >0.05). No statistically significant difference was found in distance visual acuity, refraction, intraocular pressure or Sim K value between two groups at 6 months postoperatively (P >0.05). However, the ocular higher-order aberration and contrast sensitivity in group B were significantly increased at 3 and 6 months postoperatively (P <0.05).
Conclusions
Both femto-LASIK and LASEK are good alternatives to correct the residual refractive errors and myopic regression after LASIK. Femto-LASIK provides better postoperative general conditions, visual recovery and visual quality than LASEK.
Key words:
Laser insitu keratomileusis; Residual refractive errors; Myopic regression; Femtosecond laser; Laser-assisted subepithelial keratomileusis
Publication Year: 2016
Publication Date: 2016-06-10
Language: en
Type: article
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