Official ESCRS | European Society of Cataract & Refractive Surgeons
Vienna 2018 Delegate Registration Programme Exhibition Virtual Exhibition Satellites 2018 Survey


escrs app advert


Search Title by author or title

Toric IOL implantation in false emmetropic eye

Poster Details

First Author: P.Rosetta ITALY

Co Author(s):    L. Pagano   A. Montericcio   P. Vinciguerra              

Abstract Details


To present appropriate patient selection and counselling in toric IOL implantation when total corneal astigmatism is compensated by internal astigmatism, inducing a non-astigmatic preoperative refraction. To determine which parameters select in order to achieve the best visual outcomes.


Humanitas University Clinical and Research Center, Rozzano, Milan, Italy


8 eyes underwent phacoemulsification with toric IOL. The mean preoperative refraction error was spherical or with astigmatism <1D. To acquire total and internal refractive error we performed Topoaberrometry (Nidek OPD-Scan), for anterior and posterior corneal astigmatism we performed Tomography ( Pentacam; OCULUS) and to estimate toric IOL power we used VERION image-guided surgery system. Preoperative aberrometric scan showed, in all cases, the presence of anterior corneal astigmatism between -1.52D and -3.15D, which was compensated by a perpendicular internal astigmatism between -1.17D and -2.02D. No significant posterior corneal astigmatism was found.


The refractive target was emmetropic in all cases. Postoperative refraction was either emmetropic or with a minimal spherical defect ≤ 0.75D and astigmatic defect ≤ 0.50D.


These cases prove that is mandatory to make a detailed preoperative examination in order to assess the presence of a compensatory internal astigmatism, even in emmetropic patients. Furthermore it is essential to inform the patient that only a toric IOL can fully restore an emmetropic outcome.

Financial Disclosure:


Back to Poster listing