Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance

10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits


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IOLMaster or Pentacam HR in AcrySof® Toric IQ IOL calculation?

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Session Details

Session Title: Presented Poster Session: Toric IOLs I

Session Date/Time: Saturday 10/09/2016 | 09:30-11:00

Paper Time: 09:40

Venue: Poster Village: Pod 4

First Author: : E.Kokareva RUSSIA

Co Author(s): :    A. Kulikov   N. Kotova           

Abstract Details


To compare accuracy of IOL cylinder power calculation and axis alignment of AcrySof® Toric IQ IOLs using the «IOLMaster» keratometry and «Pentacam HR» corneal topography in 3.0 mm, 4.5 mm and actual pupil zones


Ophthalmology Department of Military Medical Academy named by S.M. Kirov, Ministry of Defense of the Russian Federation, Saint-Petersburg, Russia


The results of 27 AcrySof® Toric IQ IOL implantations in 19 patients were analyzed. 15 healthy volunteers (30 eyes) were enrolled into the control group. All patients underwent threefold «IOLMaster» biometry and «Pentacam HR» measurement in 3.0 mm, 4.5 mm as well as actual pupil zones to perform IOL cylinder power calculation and axis alignment. In a month refraction and pictures of toric IOLmarks evaluation was provided for all patients postoperatively. According to 'ideal' toric position determined by vector analysis and cases of “ideal” refraction the optimal method of IOL cylinder power calculation and axis alignment was obtained


In the main group variability of K values was lower in «IOLMaster» and 4.5 mm zone «Pentacam HR» measurements. In the control group differences were not found. «IOLMaster» showed better repeatability in astigmatism meridians estimation in both groups. Axis alignment according to keratometry 'IOLMaster' better corresponds to the 'ideal' toric position and has the smallest deviation from it. In 50% of cases IOL cylinder power was calculated precisely with «Pentacam HR» and «IOLMaster» averaged data, and «Pentacam HR» in 4.5 mm zone. The least precise calculation was corneal topography data in a 3.0 mm and actual pupil zones


In toric IOL calculation it is important to divide the IOL cylinder power and axis alignment determining. To eliminate the possibility of error through the variability of keratometry data several numbers of measurement are to be performed. Axis alignment of toric IOL is better to be calculated with 3.0 mm «Pentacam HR» data, when «IOLMaster» and «Pentacam HR» data are comparable. In other cases is better to use «IOLMaster» keratometry. Using averaged keratometry data of «IOLMaster» and «Pentacam HR» in 3.0 mm, 4.5 mm and the actual pupil zone is more accurate to determine IOL cylinder power

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