A theoretical model for graft punch size calculations to prevent Descemet’s membrane folds following deep anterior lamellar keratoplasty
Version 1ABSTRACT Purpose: The length of Descemet’s membrane and donor graft sizes in deep anterior lamellar keratoplasty do not match in very steep corneas, which can lead to Descemet’s membrane folds. The aim of this study is to establish a theoretical model for graft size calculations for deep anterior lamellar keratoplasty and evaluate its efficacy for preventing Descemet’s membrane folds. Methods: We calculated the arc diameter of the recipient bed by using the cosine formula and developed a table
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ABSTRACT Purpose: The length of Descemet’s membrane and donor graft sizes in deep anterior lamellar keratoplasty do not match in very steep corneas, which can lead to Descemet’s membrane folds. The aim of this study is to establish a theoretical model for graft size calculations for deep anterior lamellar keratoplasty and evaluate its efficacy for preventing Descemet’s membrane folds. Methods: We calculated the arc diameter of the recipient bed by using the cosine formula and developed a table