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웨이브프론트 방식을 이용한 라식과 라섹 수술 간의 aberrometer 측정을 통한 고도수차의 비교

Other Titles
 Comparison of Higher-order Aberrations (HOAs) between Wavefront-guided Laser in Situ Keratomileusis and Laser Epithelial Keratomileusis 
Authors
 오상준  ;  이인식  ;  서경률  ;  이준모  ;  김응권  ;  이영기 
Citation
 JOURNAL OF THE KOREAN OPHTHALMOLOGICAL SOCIETY, Vol.45(10) : 1652-1658, 2004 
Journal Title
 JOURNAL OF THE KOREAN OPHTHALMOLOGICAL SOCIETY 
ISSN
 0378-6471 
Issue Date
2004
Keywords
Higher-order aberrations ; LASEK ; LASIK ; Myopia ; Wavefront
Abstract
Purpose: To compare the change in higher-order aberrations (HOAs) in the treatment of myopia between two different Wavefront-guided excimer ablations: laser in situ keratomileusis (LASIK) and laser assisted subepithelial keratomileusis (LASEK). Methods: One hundred and four eyes of 52 patients were treated with wavefront-guided LASIK while 104 eyes of 54 patients were treated with wavefront-guided LASEK. Pupil size, best-corrected visual acuity (BCVA), uncorrected visual acuity (UCVA), manifest refraction, corneal topography, pachymetry, and wavefront aberrations were examined preoperatively. BCVA, UCVA, manifest refraction, and wavefront aberrations were measured at 1 and 3 months postoperatively. The Hartmann-Shack aberrometer (WaveScan, VISX) was used to measure the overall wavefront aberrations for scotopic pupils. Results: The wavefront error of HOAs did not increase postoperatively in either group compared with preoperative values. Normalized polar Zernike coefficients compared between preoperative and postoperative values showed a statistically significant increase in spherical aberration term in the wavefront-guided LASIK group (p<0.001). Comparing normalized polar Zernike coefficients values between the two groups, the spherical and 2nd coma aberrations at postoperative 1 month in wavefront-guided LASEK were significantly higher than those of the wavefront-guided LASIK group (p=0.002, both). Conclusions: HOAs did not increase in either wavefront-guided LASIK or wavefront-guided LASEK compared to the previous conventional methods. However, the average RMS wavefront error of the HOAs was lower in the wavefront-guided LASIK group at 1 month postoperatively (p=0.0004).
Files in This Item:
T200401502.pdf Download
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Eung Kweon(김응권) ORCID logo https://orcid.org/0000-0002-1453-8042
Seo, Kyuong Yul(서경률) ORCID logo https://orcid.org/0000-0002-9855-1980
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/112631
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