| The Evaluation of Contrast Sensitivity and Glare after LASIK Using Flying Spot Mode Laser According to Pupil Diameter and Refractive Error. |
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Kyu Dae Choi, Hyung Bok Park, Do Hyung Lee |
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Department of Ophthalmology, Ilsan Paik Hospital, College of medicine, Inje University, Korea. dhlee@ilsanpaik.ac.kr |
| Flying spot mode laser를 이용한 LASIK 수술 후 동공크기와 굴절력에 따른 대비감도와 눈부심의 변화 |
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최규대 ( Kyu Dae Choi ) , 박형복 ( Hyung Bok Park ) , 이도형 ( Do Hyung Lee ) |
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| Abstract |
PURPOSE
To study the effect of LASIK using flying spot mode laser on contrast sensitivity and glare according to pupil diameter and preoperative refractive error. METHODS: Fifty seven eyes of 42 patients had LASIK using MEL 70 G-scan (Asclepion Meditec, Germany) to correct myopia ranging from -2.50 to -10.50 diopter (D). The contrast and glare sensitivity were measured preoperatively and 1 week, 1 month and 3 months after LASIK using CGT-1000 (Takagi, Japan). RESULTS: The mean preoperative spherical equivalent (SE) was -5.4+/-2.9D. The mean pupil diameter was 5.95+/-0.46 mm in scotopic condition. Contrast sensitivity was significantly reduced 1 month after LASIK, depending on pupil diameter and degree of preoperative myopia. However, values returned to preoperative figures thereafter (P<0.05). Glare sensitivity was improved at all frequencies 3 months after LASIK, and most significantly at high frequency (P=.031). CONCLUSIONS: LASIK using employing the flying spot mode laser can effectively accomplish refractive correction without reduction of preoperative contrast and glare sensitivity values. |
| Key Words:
Contrast sensitivity;Glare;LASIK;Visual quality |
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