Outcomes of combined wavefront-guided and aspheric LASIK for myopia and myopic astigmatism
10.3980/j.issn.1672-5123.2016.11.27
- VernacularTitle:波前像差引导联合非球面LASIK治疗近视散光术后疗效观察
- Author:
Xiao-Bin, ZHAO
;
Ke-Jun, LI
;
Fang, FAN
- Publication Type:Journal Article
- Keywords:
laser in situ keratomileusis;
wavefront aberration;
myopia
- From:
International Eye Science
2016;16(11):2091-2094
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To evaluate the clinical outcomes of combined wavefront - guided and aspheric laser in situ keratomileusis ( LASIK ) to correct myopia and myopic astigmatism.
METHODS: Prospective study. Forty-five patients ( 62 eyes ) with myopia and myopic astigmatism were randomly dividied into two groups:the wavefront-guided and aspheric LASIK group and the wavefront- guided LASIK group. Safety, efficacy, predictability, ocular higher order aberrations(HOAs), and contrast sensitivity under mesopic condition were compared at 6mo postoperatively.
RESULTS: Both platforms had equal safety, efficacy and predictability. At 6mo after operation, total HOAs, spherical aberration and coma increased in both groups(P<0. 01 ). The changes of total HOAs and spherical aberration in wavefront-guided and aspheric group were significantly less than those in wavefront-guided group ( P<0.05 ) , while the change of coma between two groups was not statistically significant ( P = 0. 657 ). Contrast sensitivity in the wavefront-guided and aspheric group recovered to preoperative levels under mesopic conditions at all spatial frequencies ( P > 0. 05 ), while contrast sensitivity in the wavefront-guided group recovered to preoperative levels at all spatial frequencies(P>0. 05).
CONCLUSION: Wavefront-guided and aspheric LASIK induced less HOAs and associated with better mesopic contrast sensitivity compared with wavefront - guided LASIK.
