The efficacy of small fly spot scan exciter laser in situ keratomileusis for treatment of myopia accompanied with moderate astigmatism
- VernacularTitle:准分子激光角膜原位磨镶术治疗近视合并中度以上散光疗效观察
- Author:
Liping YANG
;
Zhenping HUANG
;
Shaohua WANG
;
- Publication Type:Journal Article
- Keywords:
Lasik;
Small fly spot scan;
Myopia;
Astigmatism
- From:
Journal of Medical Postgraduates
2003;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objectives:To evaluate the effectiveness of small fly spot scan excimer laser in situ keratomileusis for treatment of myopia accompanied with moderate astigmatism. Methods:Ninety six cases and 145 eyes were divided into three groups according to the preoperative refractive diopters. GroupⅠ: myopia 0～-6 D, astigmatism -2～-4 DC, groupⅡ:myopia -6.25～-10.0 D, astigmatism -2～-4 DC, and group Ⅲ:myopia≥10.25 D, astigmatism -2～-4 DC. The postoperative follow up was more than six months. Results:One month after the operation, uncorrected visual acuity equal to or better than 0.6 were 5.3% in groupⅠ, 15.8% in groupⅡ, and 66.7% in group Ⅲ. Six months after the operation, uncorrected visual acuity equal to or better than 0.6 were 4% in group Ⅰ,14% in groupⅡ,and 75% in group Ⅲ.Uncorrected visual acuity equal to or better than 1.0 were 96% in group Ⅰ, 86% in groupⅡ, and 25% in group Ⅲ.Postoperative refractive error within ?1.00 D were 8% in groupⅠ,14% in groupⅡ, and 41.7% in group Ⅲ. Postoperative refractive error within ?0.50 D were 92% in groupⅠ, 86% in groupⅡ, and 58.3% in group Ⅲ. Postoperative refractive clinder within ?1.00 DC were 8% in groupⅠ,10.5%in groupⅡ, and 50% in group Ⅲ. Postoperative refractive clinder within ?0.50 DC were 92% in group Ⅰ,89.5% in groupⅡ, and 50% in group Ⅲ. The average exciter zone diameter was (8.02?0.069)mm. Conclusions:Small fly spot scan exciter laser in situ keratomileusis is an effective and safe method to treat mild and moderate myopia accompanied with moderate astigmatism.
