دورية أكاديمية
Vector analysis of astigmatic changes after small-incision lenticule extraction and wavefront-guided laser in situ keratomileusis
| العنوان: | Vector analysis of astigmatic changes after small-incision lenticule extraction and wavefront-guided laser in situ keratomileusis |
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| المؤلفون: | Khalifa, Mounir A., Ghoneim, Ahmed M., Shaheen, Mohamed Shafik, Piñero, David P. |
| المساهمون: | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía, Grupo de Óptica y Percepción Visual (GOPV) |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2017 |
| المجموعة: | RUA - Repositorio Institucional de la Universidad de Alicante |
| مصطلحات موضوعية: | Astigmatic correction, Wavefront-guided LASIK, Small-incision lenticule extraction (SMILE), Myopic eyes, Óptica |
| الوصف: | Purpose: To evaluate and compare the efficacy of the astigmatic correction after wavefront-guided laser in situ keratomileusis (LASIK) and small-incision lenticule extraction (SMILE) and in myopic eyes. Design: Prospective case series. Setting: Horus Vision Correction Center and Ellite Vision Correction Center, Alexandria, Egypt. Methods: Myopic eyes with astigmatism up to 4.00 diopters (D) had wavefront-guided LASIK or small-incision lenticule extraction. Visual and refractive changes were evaluated during a 6-month follow-up. The astigmatic changes were evaluated using the Alpins method. Result: The study evaluated 107 eyes (55 patients), 52 eyes having wavefront-guided LASIK and 55 eyes, small-incision lenticule extraction. No statistically significant differences were found in the 6-month postoperative sphere between the 2 groups (P = .652). The postoperative manifest cylinder and spherical equivalent were significantly lower in the wavefront-guided LASIK group (P < .001). The 6-month postoperative cylinder was 0.50 D or less in all eyes in the wavefront-guided LASIK groups and in 79.8% in the small-incision lenticule extraction group (P < .001). Vector analysis showed a significantly higher difference vector (P < .001) and angle of error (P = .021) and a significantly lower correction index (P = .001) in the small-incision lenticule extraction group. The mean magnitude of error was −0.07 ± 0.20 (SD) and −0.20 ± 0.35 in the wavefront-guided LASIK group and small-incision lenticule extraction group, respectively (P = .012). Conclusion: Wavefront-guided LASIK and small-incision lenticule extraction were safe and effective for the correction of myopic astigmatism, although there was a trend toward undercorrection with small-incision lenticule extraction. ; Dr. Khalifa received an unrestricted educational grant from Abbott Medical Optics Germany GmbH. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | http://dx.doi.org/10.1016/j.jcrs.2017.03.033Test; Journal of Cataract & Refractive Surgery. 2017, 43(6): 819-824. doi:10.1016/j.jcrs.2017.03.033; 0886-3350 (Print); 1873-4502 (Online); http://hdl.handle.net/10045/68547Test |
| DOI: | 10.1016/j.jcrs.2017.03.033 |
| الإتاحة: | https://doi.org/10.1016/j.jcrs.2017.03.033Test http://hdl.handle.net/10045/68547Test |
| حقوق: | © 2017 ASCRS and ESCRS. Published by Elsevier Inc. ; info:eu-repo/semantics/restrictedAccess |
| رقم الانضمام: | edsbas.A84B1BFF |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.jcrs.2017.03.033 |
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