| Change of High-order Aberration after Wavefront-guided LASIK and LASEK. |
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Seung Jae Lee, Hyo Jin Kim, Choun Ki Joo |
1Department of Ophthalmology, Kangnam St. mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. ckjoo@catholic.ac.kr
2Laboratory of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea. |
| 웨이브프런트 라식과 라섹 후 고위수차의 변화 |
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이승재1,김효진2,주천기1,2 |
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Department of Ophthalmology, Kangnam St. mary`s Hospital, College of Medicine, The Catholic University of Korea1, Seoul, Korea Laboratory of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea2, Seoul, Korea |
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Correspondence:
Seung-Jae Lee, M.D.1 |
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| Abstract |
PURPOSE
To evaluate the changes in ocular high-order aberration after wavefront-guided laser in situ keratomileusis (LASIK) and wavefront-guided laser-assisted subepithelial keratectomy (LASEK). METHODS: Twenty-four eyes of 14 patients who underwent wavefront-guided LASIK, and ten eyes of six patients who underwent wavefront-guided LASEK were retrospectively reviewed. Uncorrected visual acuity, best corrected visual acuity, manifest refraction and high order aberration were evaluated before the operation and at 1 week, 1 month, 2 months and 6 months after the operation. Aberrations were measured using a WaveScan Wavefront System (VISX, Santa Clara, CA). We analyzed the total high-order aberration, coma aberration and spherical aberration before and after surgery. RESULTS: There were no statistically significant differences in total high-order aberration or coma aberration between preoperative and postoperative 6 month measurements in either group. However the spherical aberration showed a statistically significant increase between the preoperative and postoperative 6 month measurements in the wavefront-guided LASEK group (p=0.037). The total high order aberration showed no correlation with the preoperative spherical equivalent (p=0.55), and the change in total high-order aberration did not correlate with the amount of surgically achieved correction in either group at all follow-up periods. CONCLUSIONS: Wavefront-guided LASIK and wavefront-guided LASEK showed no statistically significant changes in total high-order aberration at postoperative 6 months. |
| Key Words:
High-order aberration;Wavefront-guided LASEK;Wavefront-guided LASIK |
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