J Korean Ophthalmol Soc.  2002 Sep;43(9):1685-1692.

Clinical Results of LASIK using LaserScan LSX(R) for Myopia

• Yim JH
• Choi SH
• Lee JL

Abstract

PURPOSE: We evaluated the predictability and efficacy of LASIK using 1 mm spot scanning laser (LaserScan LSX(R)).
METHODS
LASIK was performed on 135 eyes of 73 patients from December, 1999 to February, 2001. The range of refractive error was from .11.5 D to .2.0 D (mean+/-SD : .5.88 D+/-1.79 D) and age was from 20 to 42 years (mean age: 27.8 years). They were divided into two groups according to their manifest refractive error(spherical equivalent): Group I (< -6.0 D, 73 eyes) and Group II (> of = -6.0 D, 62 eyes). And according to their astigmatism: Group A (< or = 0.75 D, 51 eyes), Group B (> or = 1.0 D, 48 eyes).
RESULTS
Mean uncorrected visual acuity of 1 year after LASIK improved from 0.06 before operation to 1.0 in Group I and from 0.04 to 0.9 in Group II. Uncorrected visual acuity of 0.8 or better was achieved in 90% of eyes in Group I and 74% in Group II. Mean preoperative spherical equivalent was -4.6 D in Group I and -7.4 D in Group II. Mean spherical equivalent of 1 year after LASIK was -0.1 D in Group I and -0.37 D in Group II. The postoperative refractions within +/-0.5 D of emmetropia were 97% in Group I and 85% in Group II. Mean preoperative astigmatism was 0.56 D in Group A and 1.68 D in Group B. Mean postoperative astigmatism was 0.15 D in Group A and 0.17 D in Group B. Postoperative refraction showed slight regression of 0.16 D in Group I and 0.45 D in Group II throughout the follow-up period.
CONCLUSIONS
We conclude that LASIK using spot scanning laser (LaserScan LSX(R)) appears to be a safe and relatively accurate procedure to correct moderate to high myopia and astigmatism.

Keyword

LASIK; Spot scanning laser; LaserScan LSX(R)

MeSH Terms

Astigmatism
Emmetropia
Follow-Up Studies
Humans
Keratomileusis, Laser In Situ*
Myopia*
Refractive Errors
Visual Acuity