Official ESCRS | European Society of Cataract & Refractive Surgeons


Precizon toric intraocular lenses for the correction of high post-keratoplasty astigmatism in cataract patients

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Session Details

Session Title: Toric IOLs & Lens Power Calculations

Session Date/Time: Sunday 15/09/2019 | 08:00-10:00

Paper Time: 08:49

Venue: Free Paper Forum: Podium 3

First Author: : E.Otero COLOMBIA

Co Author(s): :                                 

Abstract Details


To determine the safety and efficacy of high cylindrical Precizon toric intra-ocular lenses for the correction of high post keratoplasty astigmatism in patients undergoing cataract surgery.


Clinica Barraquer in Bogota, Colombia is a private ophthalmic hospital that specializes in various types of eye surgery. It is also a referral hospital serving most of South and Central America.


In this study we examined 12 eyes of 12 patients with high post keratoplasty astigmatism (greater than 5 diopters of corneal astigmatism) measured by topography and tomography that were scheduled for cataract surgery. After phacoemulsification, a Precizon toric IOL was implanted in the bag and axis was aligned. Observation of un-corrected distance visual acuity (UCDVA), best corrected distance visual acuity (BCDVA), endothelial cell count, keratometry, and IOL alignment using wavefront analysis was done 3 months after surgery.


After 3 months UDVA was on average 0.16 + 0.20 logMAR in the study group. All patients achieved a significantly better UCDVA and BSCDVA than the preo-operative BSCDVA. The mean pre-operative topographic astigmatism was 8.62 Diopters (D) and the mean pre-operative refractive astigmatism was 8.63 D. The mean refractive post-operative astigmatism was 1.00 D. All changes in visual and refractive data were significant (p< 0.05). Endothelial cell count showed no variability between pre and post op values.


Implantation of Precizon high cylinder toric IOL’s were safe and effective way to correct pre-existing high post-keratoplasty astigmatism in cataract surgery patients.

Financial Disclosure:

receives consulting fees, retainer, or contract payments from a competing company, travel has been funded, fully or partially, by a competing company

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