Measures of visual disturbance in patients receiving extended depth-of-focus or trifocal intraocular lenses

Session Details

Session Title: Cataract
Session Date/Time: Friday 21/02/2020 | 10:30-13:00
Paper Time: 11:00
Venue: Fes 1.

First Author: T.Kohnen GERMANY
Co Author(s): R. Suryakumar                 

Abstract Details

Purpose:

A literature review of subjective and objective tools currently used to assess visual disturbances in cataract patients implanted with EDOF or Trifocal IOLs.

Setting:

Department of Ophthalmology, Goethe-University, Frankfurt, Germany

Methods:

This review includes an assessment of traditional Patient Report Outcomes Measures (PROMs), novel Rasch-calibrated PROMs, Item Banking as well as objective tools for the assessment of halo, glare and light distortion in studies investigating EDOF or Trifocal IOLs.

Results:

A proportion of EDOF and Trifocal IOLs recipients suffer from unwanted visual disturbances, including blurred vision and dysphotopsia. Visual disturbance profiles may vary according to factors such as IOL type, material, and design. PROMs are recognized as important tools to assess visual disturbances in IOL studies but there is a lack of consistency in these tools regarding the measures of symptom frequency, severity and impact used in different studies. Due to the recognized importance of capturing patient perception, objective tools, such as Halo & Glare Simulators, are valuable supplementary measures of visual disturbance.

Conclusions:

Subjective PROMs based on Rasch-calibration should be the preferred measure of dysphotopsia symptoms in EDF and Trifocal IOL studies. Standardization of the PROMs used in clinical research on IOLs is necessary to facilitate cross-study comparisons.

Financial Disclosure: