Visual Outcomes and Higher Order Aberrations Following LASIK on Eyes with Low Myopia and Astigmatism
| Autor: | Gerard R Sutton, Erin Thornell, Paul Hughes, Smita A Agarwal, Chris Hodge |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
medicine.medical_specialty
Visual acuity genetic structures media_common.quotation_subject medicine.medical_treatment Keratomileusis Astigmatism Excimer LASIK 03 medical and health sciences 0302 clinical medicine Vision quality Ophthalmology medicine Myopia Contrast (vision) 030212 general & internal medicine Contrast sensitivity media_common business.industry medicine.disease eye diseases Aberrations of the eye Spherical aberration Aberrations 030221 ophthalmology & optometry sense organs medicine.symptom business |
| Zdroj: | The Open Ophthalmology Journal |
| ISSN: | 1874-3641 |
| Popis: | Background: Laser-Assisted in situ Keratomileusis (LASIK) can induce corneal aberrations that can impact vision and patient satisfaction. Recent developments in laser technologies have helped minimise these aberrations. Objective: To assess the quality of vision and change in Higher-Order Aberrations (HOAs) following wavefront-optimized LASIK in low-myopic astigmatic patients. Methods: LASIK was performed on a total of 76 eyes in patients with myopia Results: Mean postoperative Spherical Equivalent (SE) was -0.09 ± 0.26 µm with 95% of patients within ± 0.5 D of attempted SE. Postoperative uncorrected distance visual acuity was 20/20 or better for 96% of patients. Contrast sensitivity increased against horizontal and vertical gratings at all spatial frequencies except for vertical gratings at 18 cycles/degree. Spherical aberration and total HOA increased by 0.085 µm and 0.13 µm respectively. The mean VF14 score increased from 89.2 ± 16.7% to 99 ± 1.4% postoperatively. Conclusion: LASIK performed using the WaveLight® EX500 excimer and WaveLight® FS200 laser platform provided improved contrast sensitivity and visual acuity with minimal introduction of HOAs, making it a suitable platform for low myopic astigmatic patients. |
| Databáze: | OpenAIRE |
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