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Research Article: Vector Analysis and Prognostic Factors for Femtosecond Arcuate Keratotomy in Post-Keratoplasty Astigmatism

Date Published: 2023-12-07

Introduction:
Post-keratoplasty astigmatism is a major confounding factor for the visual outcome. When keratoplasty results in high astigmatism, limited options are available to address the large amount of astigmatism as corneal based refractive procedures such as topography-guided custom ablation (T-CAT) photorefractive surgery are limited by a safe residual stromal bed thickness beyond which it cannot be used, or toric implantable collamer lens (ICL) which also has a maximum treatment limit. Alone or in combination, several…

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