Official ESCRS | European Society of Cataract & Refractive Surgeons
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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IOL calculation after laser refractive surgery: intraoperative aberrometry vs ASCRS online calculator

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Session Details

Session Title: Cataract Surgery Equipment/Instrumentation/Surgical Devices II

Session Date/Time: Monday 12/09/2016 | 17:00-18:30

Paper Time: 17:00

Venue: Hall C1

First Author: : C.Azenha PORTUGAL

Co Author(s): :    I. Sobral   A. Martins   E. Costa   A. Rosa   M. Quadrado   J. Murta     

Abstract Details


To compare the intraoperative aberrometry (IA) versus ASCRS online calculator for intraocular lens (IOL) power calculation, in eyes undergoing cataract surgery after prior myopic LASIK procedure.


Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra, Portugal


Retrospective analysis of 9 patients undergoing cataract surgery with prior myopic LASIK procedure. Patients underwent intraoperative aberrometry and ASCRS online calculator for IOL power estimation. Comparative effectiveness analysis was done to evaluate the accuracy of IOL power determination of these two methods.


In 9 eyes, the IA achieved a median absolute error of 0.38 (0.03 – 0.83) and a mean absolute error of 0.40 ± 0.28. The ASCRS online calculator showed a median absolute error of 0.36 (0 - 1.25) and a mean absolute error of 0.39 ± 0.34. The IA and ASCRS online calculator did not reveal significantly different capability to determine the estimated IOL power (p = 0.96). However the IA showed a minor range of median absolute error.


The IOL power estimation in patients with prior myopic LASIK was predicted with similar accuracy using the IA or ASCRS calculator online.

Financial Disclosure:

... gains financially from product or procedure presented

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