[Corneal topography and LASIK].
OBJECTIVE
The purpose of this study is to outline the importance of corneal topography after LASIK surgery and to show the association between topographic findings and postoperative results.


METHODS
One hundred and fourteen eyes, 70 patients with myopia (from -6.00 to -14.00 Dsph) who underwent surgery by LASIK.


METHODS
We identified 5 types of topographic patterns which were classified to symmetric and asymmetric groups. We evaluated the association between the type of topography pattern and the following parameters: age, sex, astigmatism, pre-operative refraction, post-operative uncorrected and best corrected visual acuity.


RESULTS
Fifty eight eye filled the criteria of the first group (uniform pattern), 30 eyes of the second group (bowtie), 4 eyes of the third group (penninsula), 3 eyes of the fourth group (semicircular) and 3 eyes of the fifth group (irregular pattern). Significant association between topographic corneal patterns and observed parameters has been confirmed in post-operative uncorrected visual acuity, post-operative refraction and astigmatism (p < 0.05). Age and sex were not significant parameters for the outcome of surgery.


CONCLUSIONS
Majority of eyes (89%) had symmetric corneal topography pattern which highly surpassed our expectations. Comparison of topography patterns with observed parameters proves that the shape of ablation zone influences post-operative quality of vision.
Juhás
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T
Ocná klinika FNsP a LF UPJS, Kosice.
Juhás
T
T
Kozák
I
I
Hornák
M
M
D000293:Adolescent; D000328:Adult; D001251:Astigmatism / Q000150:complications / Q000473:pathology; D019781:Corneal Topography; D005260:Female; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D008297:Male; D009216:Myopia / Q000473:pathology / Q000601:surgery*; D012029:Refraction, Ocular; D014792:Visual Acuity