Abstract
In this study, the test-retest-reliability as one aspect of reliability of metamorphopsia
measurements using a computer-based measuring method was determined in patients with
macular diseases. Metamorphopsia amplitude, position, and area were quantified using
AMD – A Metamorphopsia Detector software (app4eyes GmbH & Co. KG, Germany) in patients
with diabetic, myopic, or uveitic macular edema, intermediate or neovascular age-associated
macular degeneration, epiretinal membrane, vitelliform maculopathy, Irvine-Gass syndrome,
or macular edema due to venous retinal occlusion. The intraclass correlation coefficient
(ICC) was calculated in order to determine the repeatability of two repeated measurements
and was used as an indicator of the reliability of the measurements. In this study,
metamorphopsia measurements were conducted on 36 eyes with macular diseases. Metamorphopsia
measurements made using AMD – A Metamorphopsia Detector software were highly reliable
and
repeatable in patients with maculopathies. The intraclass correlation coefficient
of all indices was excellent (0.95 – 0.97). For diseases of the vitreoretinal interface
or macular diseases with intra- or subretinal edema, this metamorphopsia measurement
represents a supplement for visual function testing in the clinic, as well as in clinical
studies.
Key words
metamorphopsia - quantitative metamorphopsia measurement - reliability - repeatability
- Information Technology - test-retest-reliability