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

20th Argentinean Bioengineering Society Congress

物理学;生物科学

Alcalde, N.G.^1,2 ; Castillo, L.R.^2,3 ; Filgueira, C Paz^2,3 ; Colombo, E.M.^2,3

Department of Bioengineering, Sciences and Technology School, National University of Tucumán(FACET - UNT), Avenida Independencia 1800, Tucumán

CPA (T4002BLF), Argentina^1

Department of Lighting, Light and Vision (DLLyV), FACET - UNT, Avenida Independencia 1800, Tucumán

CPA (T4002BLR), Argentina^2

Institute of Investigation in Light Environment and Vision (ILAV - CONICET - UNT), Avenida Independencia 1800 1800 CPA, Tucumán

T4002BLR, Argentina^3

关键词: Argentina;    Calculated values;    Clinical practices;    Contrast sensitivity;    Contrast sensitivity function;    Eye disease;    Sinusoidal grating;    Spatial frequency;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/705/1/012052/pdf
DOI  :  10.1088/1742-6596/705/1/012052

学科分类：生物科学（综合）

来源: IOP

【 摘 要 】

The Contrast Sensitivity Function (CSF) is a valuable tool which can be used to characterize functional vision and also for the diagnosis and management of patients with different eye diseases. In spite of its usefulness, the CSF is currently hardly ever used in clinical 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 this important tool to ophthalmological clinics. The validation was carried out through the design of a repeatability test and the subsequent analysis of the results. Furthermore, we evaluated the impact 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.