1. Vision Quality of Life with Time Survey: Normative Data and Repeatability
- Author
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Dungan,Michaela E, Scheiman,Mitchell, Yaramothu,Chang, Dungan,Michaela E, Scheiman,Mitchell, and Yaramothu,Chang
- Abstract
Michaela E Dungan,1 Mitchell Scheiman,2 Chang Yaramothu1,3 1School of Applied Engineering and Technology, New Jersey Institute of Technology, Newark, NJ, USA; 2Pennsylvania College of Optometry, Salus University, Philadelphia, PA, USA; 3Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USACorrespondence: Chang Yaramothu, School of Applied Engineering and Technology, New Jersey Institute of Technology, University Heights, Newark, NJ, 07102, USA, Tel +1 973642-4844, Email chang.yaramothu@njit.eduPurpose: To develop a novel Vision Quality of Life (QoL) survey that emphasizes the amount of time a visual activity can be performed before symptoms occur.Methods: The Vision Quality of Life with Time (VisQuaL-T) survey was developed with 10 daily activities and a list of common visual symptoms. Participants were recruited from a university campus. Participants were not excluded based on binocular impairments to obtain a normative dataset. Participants were instructed to denote when they first experience symptoms within certain time ranges. If participants did not engage in one of the 10 activities, they were instructed to denote âN/Aâ. A composite score (range 0â 3) was determined by only accounting for the questions that were answered.Results: The normative data cohort had a sample size of 376 participants and the repeatability cohort had 54 participants. The normative, test, and retest datasets had a mean composite score of 2.47± 0.54, 2.69± 0.42, and 2.67± 0.49 and 95% confidence interval of 2.38â 2.71, 2.58â 2.81, 2.54â 2.80, respectively. There was good reliability and high correlation between the test and retest timepoints with an ICC of 0.825 and a Pearson correlation coefficient of 0.839 in the repeatability cohort. The normative data cohort showed good internal consistency with a Cronbachâs alpha value of 0.803. Test and retest timepoints showed no statistical significance among the individual questions (p > 0.
- Published
- 2023