Repeatability Evaluation of a Contrast Sensitivity System for Transfer to the Eye Clinic

PAZ FILGUEIRA, CLEMENTE; ALCALDE NOELIA; CASTILLO RAQUEL; COLOMBO ELISA MARGARITA

Journal of Physics Conference Series

IOP Publishing

Año: 2016 vol. 705

The Contrast Sensitivity Function (CSF) is a valuable tool which can be used tocharacterize functional vision and also for the diagnosis and management of patients withdifferent eye diseases. In spite of its usefulness, the CSF is currently hardly ever used inclinical practice. The aim of this study was to validate the use of the system called FVC-100(Tecnovinc-UNT-CONICET, Argentina), which calculates the CSF, in order to transfer thisimportant tool to ophthalmological clinics. The validation was carried out through the designof a repeatability test and the subsequent analysis of the results. Furthermore, we evaluated theimpact of different factors influencing the repeatability of the measurements such as age and previous training. The tests were based on the discrimination of sinusoidal gratings for different spatial frequencies (1, 4 and 12 c/°) in both eyes of 12 people, aged between 20 and 70. The results show that the calculated values of SC of each subject have a high repeatability and are not dependent on age or training. These results allow us to conclude positively regarding the effectiveness of the FVC-100, and to validate its use in clinics for the calculation of the FSC as a standard measure of functional vision quality.