Accuracy of toric intraocular lens calculations using estimated versus measured posterior corneal astigmatism.

Toric intraocular lenses (tIOL) provide the opportunity to reduce postoperative refractive astigmatism and improve visual quality.1 Nonetheless, accurately predicting the final refractive astigmatism remains a challenge. Previous studies have stressed the importance of posterior corneal astigmatism (PCA) in predicting postoperative astigmatism.2,3 Traditionally, a fixed ratio between the anterior and posterior corneal curvature was assumed to estimate the total corneal astigmatism. However, Koch et al.

Source: American Journal of Ophthalmology - November 22, 2023 Category: Opthalmology Authors: Maartje H.M. Segers, Adi Abulafia, Valentijn S.C. Webers, Jan-Willem Verstraaten, Magali M.S. Vandevenne, Tos T.J.M. Berendschot, Yoav Ken-Tor, Yuval Benjamini, Frank J.H.M. van den Biggelaar, Graham D. Barrett, Rudy M.M.A. Nuijts, Mor M. Dickman Tags: Original Articles Source Type: research