The Results in LASIK According to The Use of The Fixation Ring and The Accuracy of The Focusing Beam.
- Author:
Woo Ho NAM
1
;
Kyung Hyun JIN
Author Information
1. Department of Ophthalmology, Kyung Hee University College of Medicine, Korea. khjinmd@khmc.or.kr
- Publication Type:Original Article
- Keywords:
Fixation ring;
Focusing beam;
LASIK
- MeSH:
Keratomileusis, Laser In Situ*;
Morinda;
Myopia;
Retrospective Studies;
Visual Acuity
- From:Journal of the Korean Ophthalmological Society
2003;44(3):588-593
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: In order to know the effects of inaccurate laser shot of vertical or horizontal direction, we evaluated the clinical results of LASIK according to the use of fixation ring and the accuracy of the focusing beam on the corneal stromal bed. METHODS: LASIK was performed in 73 eyes with one surgeon between April, 2001 and January, 2002 were divided into two groups: those who exceeded -6.00D were high myopia group (37 eyes), and those who did not were low myopia group (36 eyes). We retrospectively analyzed the results of the LASIK in two methods, the one is the evaluation of the vertical directional error with the accuracy of the focusing beam and the other is the horizontal error with the use of fixation ring. We measured the preoperative and postoperative uncorrected visual acuity, spherical equivalent, and the postoperative predictability. RESULTS: There was no significant statistical difference in the spherical equivalent, uncorrected visual acuity, postoperative predictability between the use and nonuse of fixation ring and good and bad accuracy of focusing beam in high myopia and low myopia (P>0.05). CONCLUSIONS: These results suggest that a little difference in the accuracy of focusing beam on the corneal stromal bed and the use of fixation ring would not affect the clinical result after LASIK.
