Topography-Based Removal of Corneal Epithelium for Keratoconus: A Novel and Customized Technique

Cornea
Rohit ShettyAbhijit Sinha Roy

Abstract

To report 3 cases of management of keratoconus with a novel topography-based removal of corneal epithelium in keratoconic eyes combined with corneal crosslinking. Case report and technique description. Three eyes were imaged with the Sirius topographer (Schwind Eye-Tech-Solutions, Germany). Single-step transphototherapeutic keratectomy was performed. After removal of epithelium with laser, 4-mm diameter ablation was performed centered at the location of the maximum anterior tangential curvature point. An ellipsoid ablation pattern was used for all eyes. The stromal ablation depth did not exceed 25 μm. Next, epithelium over the remaining central 8-mm cornea was manually scraped. Accelerated crosslinking (9 mW/cm for 10 min) of the central 8-mm cornea was performed. After 3 months, spherical equivalent, maximal anterior curvature, and root mean square of higher-order aberrations decreased by 1.75 D, 2.0 D, and 0.15 μm, respectively, in the first eye. The spherical equivalent, maximal anterior curvature, and root mean square decreased by 2.75 D, ∼4.0 D, and 0.36 μm, respectively, in the second eye. In the third eye, the decrease was 0.75 D, 8.3 D, and 1.0 μm, respectively. After 3 months, improvement in visual acuity was significa...Continue Reading

References

Aug 14, 2012·Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie·Mustafa KapasiKashif Baig
Aug 20, 2014·Journal of Cataract and Refractive Surgery·George D KymionisIoannis G Pallikaris
May 27, 2015·American Journal of Ophthalmology·Rohit ShettyHarsha Nagaraja
Mar 6, 2016·American Journal of Ophthalmology·Theo G SeilerTheo Seiler
May 10, 2017·Journal of Refractive Surgery·Himanshu MataliaAbhijit Sinha Roy
Oct 11, 2017·Journal of Refractive Surgery·Rohit ShettyAbhijit Sinha Roy
Oct 11, 2017·Journal of Refractive Surgery·Stefano GuglielmettiTimothy J Archer

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Citations

Jul 25, 2020·European Journal of Ophthalmology·Rohit ShettyVaitheeswaran Ganesan Lalgudi
Nov 25, 2020·Indian Journal of Ophthalmology·Vardhaman P KankariyaGeorge D Kymionis
Nov 25, 2020·Indian Journal of Ophthalmology·Pooja KhamarKrati Gupta

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