Time Controlled Visual Acuity Evaluation
Research type
Research Study
Full title
Time Controlled Visual Acuity Evaluation: Test - Retest and Quantification of the Effect of Blur
IRAS ID
194302
Contact name
Michel Guillon
Contact email
Sponsor organisation
OCULAR TECHNOLOGY GROUP-International
Duration of Study in the UK
0 years, 9 months, 16 days
Research summary
Visual performance is conventionally measured using visual acuity charts with high contrast and there is no restriction in how long it takes for an individual to correctly identify the letters on the chart. Individuals may perform relatively well with these charts however, this does not necessarily reflect how they will perform in the real world. OCULAR TECHNOLOGY GROUP – International (OTG-i) has developed a computer-based system that allows the measurement of visual performance under different conditions of contrast and lighting level while also controlling the time that the letter targets can be viewed for. The OTG-i Vision system has been developed to better represent the visual demands of today’s device dominated world. The purpose of this study is to compare the measurements taken with the OTG-i Vision system against those taken with a conventional visual acuity chart that is frequently used in clinical trials for the assessment of visual performance.
REC name
South East Scotland REC 02
REC reference
15/SS/0215
Date of REC Opinion
13 Nov 2015
REC opinion
Further Information Favourable Opinion