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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Evaluation of the rotational stability of toric IOL: importance of head positioning and cyclotorsion

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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: 10:40

Venue: Poster Village: Pod 4

First Author: : K.Vandekerckhove SWITZERLAND

Co Author(s): :                  

Abstract Details


Postoperative slitlamp or photographic assessment of toric IOL alignment is prone to measurement errors related to head malpositioning and cyclotorsion


Vista Alpina Eye Center


A total number of 500 images (89 eyes, 6 sequential study visits over 12 months) were analysed. A dual Scheimpflug analyzer was used for photographic assessment of IOL position. Two or more iris landmarks were used to correct for cyclotorsion and malpositioning of the patient’s head at every study visit.


Postoperative IOL misalignment was overestimated when head position and cyclotorsion were not accounted for. The mean difference between uncorrected and corrected assessment was 1.0° ± 0.9° (P=0.02). In 17% of measurements, the error reached 2° or more.


The assessment of postoperative rotational stability of toric IOL must take into account head movement and cyclotorsion. Especially in the setting of clinical studies, the use of uncorrected IOL rotation data may lead to erroneous conclusions. The use of iris landmarks is a good method to accurately determine the real IOL orientation.

Financial Disclosure:

One or more of the authors receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented

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