Evaluation of the Difference between Predicted and Measured Central Corneal Thickness Reduction after SMILE and Femtosecond Laser-assisted LASIK for Myopia
| Autor: | Fang Wu, Yabo Yang, Houfa Yin |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male medicine.medical_specialty Materials science Adolescent Corneal Pachymetry genetic structures Corneal Surgery Laser Corneal Stroma medicine.medical_treatment Keratomileusis Laser In Situ Visual Acuity Refraction Ocular Cornea Young Adult 03 medical and health sciences Cellular and Molecular Neuroscience 0302 clinical medicine Predictive Value of Tests Ophthalmology Myopia medicine Humans Small incision lenticule extraction Prospective Studies Reduction (orthopedic surgery) Corneal Topography LASIK Organ Size Laser assisted eye diseases Sensory Systems Femtosecond 030221 ophthalmology & optometry Female Lasers Excimer sense organs 030217 neurology & neurosurgery |
| Zdroj: | Current Eye Research. 46:1089-1095 |
| ISSN: | 1460-2202 0271-3683 |
| Popis: | To evaluate the agreement between the predicted and measured central corneal thickness (CCT) reduction after the small incision lenticule extraction (SMILE) surgery and femtosecond laser-assisted in situ keratomileusis (FS-LASIK) surgery.A total 165 patients were enrolled in this prospective study. Eighty patients with a mean spherical equivalent (SE) of -4.72 ± 1.80 Diopters (D) were treated with the FS-LASIK procedure and Eighty-five patients with a mean SE of -4.78 ± 1.63 D were treated with SMILE procedure. One eye for each patient was randomly selected and included for statistical analysis. Ultrasound pachymetry measurement and Scheimpflug camera corneal topography were performed preoperatively and 3 months postoperatively. The measured CCT reduction was calculated by comparing the preoperative examinations with postoperative examinations. Comparative statistics and linear regression analyses were performed.The mean predicted CCT reduction was 95.02 ± 21.39 μm in FS-LASIK group and 103.49 ± 22.87 μm in SMILE group (A systematic overestimation of measured CCT reduction in FS-LASIK group did not influence the refractive precision of FS-LASIK. Due to the different biomechanical distributions in post-SMILE cornea, the measured CCT reduction was influenced as the changes in refractive correction. Nomogram adjustment for high myopic correction needs further research. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|