Centration in refractive surgery

Rios, Livia Cristina; Silva, Patrícia Gomes da; Canamary, Aristófanes Mendonça; Rodrigues, Pablo Felipe; Regatieri, Caio V.; Campos, Mauro; Moscovici, Bernardo Kaplan

doi:10.5935/0004-2749.20200014

Cited by 4 publications

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“…e limited number of reports of the more troublesome symptoms precluded evaluating correlations with other factors. Postoperative satisfaction was found to correlate with UCVA after LASIK in agreement with previous studies [35][36][37] that demonstrated reduced postoperative UCVA due to residual refractive error as a common reason for dissatisfaction.…”

Section: Discussionsupporting

confidence: 90%

Reversal of Myopic Correction for Patients Intolerant to LASIK

Gab-Alla

2021

Journal of Ophthalmology

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Purpose. To evaluate the outcome of the reversal of myopia correction in patients intolerant to LASIK. Methods. This study is a retrospective and case series of patients who decided to reverse their previous myopic LASIK correction between July 2012 and July 2020. It was conducted at a private refractive surgery centre, Ismailia, Egypt. The patients were followed up after reversal treatment for one year. Primary LASIK and reversal treatment were performed by a 500 kHz Amaris excimer laser platform. The main outcomes included refractive predictability, stability, efficacy, and safety and any reported complications. Results. This study included 48 eyes of 24 patients (6 male and 18 female patients). The average duration between the primary LASIK surgery and reversal treatment was 3.20 ± 0.30 months (range 3 to 4 months). Reversal treatment was bilateral in all patients. The mean age of the patients was 38 ± 1.9 years (range 37 to 45 yrs). After reversal, the mean postreversal cycloplegic refraction spherical equivalent was −1.82 ± 0.34 D (range −1.50 to −3.00 D). The mean ablation depth was 34.10 ± 7.36 μm (range 20 to 46 μm), and the mean of the central corneal thickness 12 months after reversal treatment was 510.2 ± 14.4 μm (range 515 to 487 μm). The mean keratometric reading was 42.6 ± 1.6 (range 42.5 to 44.8). The mean of CDVA was 0.2 ± 0.03 log MAR (range −0.10 to 0.4 log MAR). The mean optical zone of reversal treatment was 6.1 ± 0.3 mm (range 5.9 to 6.2 mm). UDVA was 0.4 log MAR in 87.5% of the patients, 0.5 log MAR in 8.3% of the patients, and 0.6 log MAR in 4.2% of the patients. CDVA remained unchanged in 83.3% of patients; 2.1% of the patients gained one line of CDVA (Snellen); 8.3% of the patients lost one line of CDVA; 6.3% of the patients lost two lines of CDVA. No cases of corneal ectasia were recorded. The only postoperative complications were flap microfolds in 3 eyes (6.25%). Conclusion. In conclusion, this study demonstrates that reversal of myopic LASIK treatment is a safe, stable, and effective option for intolerant patients.

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Section: Discussionsupporting

confidence: 90%

Reversal of Myopic Correction for Patients Intolerant to LASIK

Gab-Alla

2021

Journal of Ophthalmology

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Pupil versus 1st Purkinje capsulotomy centration with femtosecond laser: Long term outcomes with a sinusoidal trifocal lens

Salgado,

Torres,

Marinho

2024

Journal of Biophotonics

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PurposeTo assess the role of femtosecond laser‐assisted capsulotomy centration in the long‐term intraocular positioning of a multifocal intraocular lens.DesignProspective comparative study.MethodsA total of 60 eyes of 30 patients underwent femtosecond laser‐assisted Refractive Lens Exchange (RLE). For every patient, capsulotomy centration was randomly performed according to pupil centre (PC) in one eye and first Purkinje reflex (FPR) in the other. The intraocular lens (IOL) positioning, visual acuities, spherical equivalent, internal aberrometry and quality of vision were assessed and compared at 3 years' follow‐up between groups (PC and FPR).ResultsIntraocular lens positioning showed a statistically significant difference between groups, with a closer centration to the visual axis in the FPR patients (p < 0.001). Internal aberrometry showed higher values in the PC capsulotomy centration group (p < 0.01).ConclusionsFPR centered capsulotomy is associated to a closer centration of the IOL to the visual axis.

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Hypermétropie et chirurgie réfractive

Delbarre

Boucenna

et al. 2021

Journal Français d'Ophtalmologie

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Centration in refractive surgery

Cited by 4 publications

References 0 publications

Reversal of Myopic Correction for Patients Intolerant to LASIK

Reversal of Myopic Correction for Patients Intolerant to LASIK

Pupil versus 1st Purkinje capsulotomy centration with femtosecond laser: Long term outcomes with a sinusoidal trifocal lens

Hypermétropie et chirurgie réfractive

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