Effect of flap homogeneity on higher-order aberrations induction after femtosecond LASIK for myopia
| Autor: | Juan Gros-Otero, Montserrat Garcia-Gonzalez, César Villa-Collar, Miguel A. Teus, Alberto Parafita-Fernández |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Miopía Materials science Corneal Stroma medicine.medical_treatment Keratomileusis Laser In Situ Visual Acuity Cirugía laser de córnea Keratomileusis law.invention Tratamiento médico 03 medical and health sciences 0302 clinical medicine Optical coherence tomography law Cornea Ophthalmology Myopia medicine Humans medicine.diagnostic_test Homogeneity (statistics) LASIK Laser eye diseases Sensory Systems Aberrations of the eye medicine.anatomical_structure Spain Femtosecond 030221 ophthalmology & optometry Oftalmología Lasers Excimer Surgery Enfermedad 030217 neurology & neurosurgery |
| Zdroj: | Journal of Cataract and Refractive Surgery. 46:1278-1283 |
| ISSN: | 1873-4502 0886-3350 |
| DOI: | 10.1097/j.jcrs.0000000000000255 |
| Popis: | Purpose: To assess the relevance of the homogeneity of femtosecond laser flap thickness regarding induction of higher-order aberrations (HOAs). Setting: Clínica Rementería & Clínica Novovisión, Madrid, Spain. Design: Prospective observational study. Methods: Two hundred thirty-one patients underwent in situ keratomileusis using 5 different femtosecond lasers. The flap thicknesses were measured using anterior segment optical coherence tomography 3 months postoperatively. The same masked observer measured 6 symmetrical points nasally and temporally 1.0 mm, 2.0 mm, and 3.0 mm from the center of the flap in each case. HOAs induced in the cornea were measured using tomography. Results: Positive and significant correlations were found between HOA induction and the flap thickness heterogeneity 3.0 mm from the center of the flap. Pearson correlation coefficients for the induction of HOAs were third-order 0.17112 (P = .0224), fourth-order 0.22474 (P = .0026), fifth-order 0.16449 (P = .0282), coma-like 0.17370 (P = .0204), and total HOAs 0.18182 (P = .0151). Conclusions: The amount of flap-thickness heterogeneity at 3.0 mm from the center of the flap created using femtosecond lasers was correlated with the magnitude of the HOAs induced. Sin financiación 3.351 JCR (2020) Q2, 18/62 Ophthalmology 1.678 SJR (2020) Q1, 11/124 Ophthalmology No data IDR 2020 UEM |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|