Background: This prospective study focused on the results of a novel method for refractive correction, femtosecond lenticule extraction (ReLEx®) in hyperopia, and reports the first 47 eyes.
Methods: In 47 hyperopic eyes (26 patients), both a flap and a lenticule of intrastromal corneal tissue were simultaneously cut utilizing the Carl Zeiss Meditec AG (CZM) 200 kHz VisuMax femtosecond laser system. Thereafter, the lenticule was manually removed and the flap repositioned. Forty two out of 47 hyperopic eyes of the treatment group completed the final 9-month follow-up. The patients mean age was 42.3 (±9.0) years. Their mean preoperative spherical equivalent (SE) was +2.8 (±1.3) D. UCVA and BSCVA after 9 months, objective and manifest refraction, as well as slit-lamp examination and side-effects were evaluated.
Results: Nine months postoperatively, 64 % of eyes treated were within ±1.0 D, and 38 % of eyes within ±0.5 D of intended correction. One of 47 eyes (2.1 %) lost more than 2 Snellen lines; none of the eyes had a UCVA less than 0.5. However, stability was less impressive when compared to ReLEx for the correction of myopia.
Conclusions: First data suggest that ReLEx is a feasible and effective procedure for treatment of hyperopia. Further research is needed to improve predictability and effectiveness of the procedure for the correction of hyperopia.
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http://dx.doi.org/10.1007/s00417-012-2064-y | DOI Listing |
Clin Ophthalmol
December 2024
Department of Refractive Surgery, Dr Om Parkash Eye Institute, Amritsar, India.
Purpose: To describe the "Ridge Sign" as a conclusive indicator for differentiating the anterior and posterior lenticular planes in Small Incision Lenticule Extraction (SMILE).
Methods: Femtosecond laser application for SMILE was performed. Anterior and posterior planes were dissected.
Zhonghua Yan Ke Za Zhi
December 2024
Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing100191, China.
To compare the postoperative visual outcomes of corneal topography-guided femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) and small incision lenticule extraction (SMILE) for myopia and myopic astigmatism. Embase and PubMed were searched for randomized controlled trials (RCTs), prospective comparative studies, observational studies and retrospective studies of patients with myopia and/or myopic astigmatism treated by corneal topography-guided FS-LASIK, the other FS-LASIKs or SMILE (inception to November 2023). The studies meeting the criteria were collected and underwent quality assessment according to the Jadad scale for RCTs and the Newcastle-Ottawa scale for non-randomized studies.
View Article and Find Full Text PDFPurpose: To evaluate the visual outcomes of keratorefractive lenticule extraction using a new version of a femtosecond laser platform with semi-automated cyclotorsion compensation in comparison to the previous generation without cyclotorsion control.
Methods: This was an ambispective study of consecutive eyes treated by SMILE with the VisuMax and VISUMAX 800 femtosecond lasers at the Uma Eye clinic, Chennai, India between June 2022 and July 2023. Inclusion criteria were myopia up to -10 D and astigmatism between 1.
Graefes Arch Clin Exp Ophthalmol
December 2024
Eye Institute, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, Jiangsu, China.
Purpose: To compare corneal thickness (CT) and corneal volume (CV) consumption after the refractive lenticule extraction and the femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) in myopic eyes with high with-the-rule (WTR) astigmatism.
Methods: 70 myopic eyes (50 patients) with high WTR astigmatism (-2.00 to -3.
Cir Cir
November 2024
Departamento de Córnea y Cirugía Refractiva, Instituto de Oftalmología Conde de Valenciana, Ciudad de México.
Objective: To compare visual acuity, refraction, Schirmer test, tear break-up time (TBUT), esthesiometry, optical quality, higher order aberrations and posterior corneal elevation measurements before and after small-incision lenticule extraction (SMILE) and femtosecond laser-assisted in situ keratomileusis (FS-LASIK).
Method: Paired eye, randomized, cohort study. Follow-up was performed at days 1 and 7, and at months 1, 3, 6 and 12.
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