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Toric intraocular lenses in cataract operation

Poster Details

First Author: A.Liaska GREECE

Co Author(s):    T. Pallantzas   E. Makri   D. Mitsiou   S. Stamelou   K. Andrianopoulou        

Abstract Details


the shift towards the refractive correction aspect rather than simple visual acuity restoration is quite obvious in the literature concerning modern cataract surgery. However, there has been far less than enthusiastic move into this direction in clinical practice. The purpose of the study is to present our first experience of toric intraocular lenses (enVista toric) implantation for astigmatic correction in General Hospital of Lamia.


General Hospital of Lamia, Lamia, Greece


retrospective chart review of 13 patients(20 eyes) with astigmatism who were operated in General Hospital of Lamia. 17 eyes had a toric(enVista toric) intraocular lens (IOL) implantation and three eyes had a three-piece simple monofocal IOL implantation. Preoperative corneal astigmatism, preoperative refractive correction, postoperative cylinder (refraction), postoperative uncorrected visual acuity(UCVA) and postoperative best corrected visual acuity(BCVA) were recorded. Free software (enVista Toric Calculator) was used for appropriate IOL calculation. Axis alignment was achieved by taking a photo of the eye at the slit lamp (sitting position) preoperatively, identification of guide points at the limbus and manual appropriate IOL positioning intraoperatively.


all patients experienced significant improvement in BCVA postoperatively; however patients with toric IOL implantation presented significantly better UCVA than patients with monofocal IOL(Kruskal Wallis test, p= 0.0159). UCVA(logMAR) showed significant correlation (Spearman’s rho, p<0.05) with the use of toric IOL(-0.5026) and astigmatism in postoperative refraction (0.6864), while astigmatism in postoperative refraction correlated negatively with the use of toric IOL(-0.4917). Corneal astigmatism remained stable in both groups. In enVista toric group there were 3 cases with suboptimal postoperative BCVA: one eye with Age Related Macular Degeneration and two hyperopic eyes.


astigmatism correction simultaneously with cataract operation offers superior spectacle independence postoperatively. Appropriate patient selection results in superior UCVA results, however all patients with astigmatism may benefit from toric intraocular lens implantation.

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