Analysis of the effectiveness of laser in situ keratomileusis two years after surgery.
- Author:
Yu-mei JIN
1
;
Guo-xiang PANG
;
Yu-min SUN
;
Zhong-hai WANG
Author Information
- Publication Type:Journal Article
- MeSH: Adolescent; Adult; Female; Follow-Up Studies; Humans; Keratomileusis, Laser In Situ; Male; Myopia; surgery; Retrospective Studies; Treatment Outcome; Visual Acuity
- From: Acta Academiae Medicinae Sinicae 2004;26(1):73-75
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate the effectiveness of laser in situ keratomileusis (LASIK) for myopia after 2 year follow-up.
METHODSLASIK surgery was performed for 95 eyes (49 cases) with refractive dioptres (from -1.00 to -16.50 D), and then followed up for more than 2 years. The preoperative spherical equivalent was -1.00(-)-16.50 (-6.73 +/- 2.02) D. Patients were divided into two groups including group I with mild to moderate myopia (< or = -6.00 D) and Group II with severe myopia (more than -6.00 D).
RESULTSIn group I, uncorrected visual acuity more than and equivalent to 1.0 was in 40 eyes (93.02%), more than and equivalent to 0.8 in 43 eyes (100%). In group II, uncorrected visual acuity larger than and same as 1.0 was in 37 eyes (71.15%), larger than and same as 0.8 in 45 eyes (86.54%), larger than and same as 0.5 in 50 eyes (96.15%), and less than 0.5 in 2 eyes (3.85%). The mean spherical equivalent changed from (-4.14 +/- 0.86) D to (-0.04 +/- 0.14) D in group I and from (-9.00 +/- 1.64) D to (-0.08 +/- 0.20) D in group II. Significant difference was seen in these two groups (P < 0.001). The keratometric powers (K) were reduced from (44.31 +/- 0.78) to (40.11 +/- 1.23) and from (45.46 +/- 1.00) to (38.01 +/- 1.73) respectively, which showed significant difference (P < 0.001).
CONCLUSIONThe effectiveness of LASIK for mild to moderate myopia or severe myopia is promising and safe.
