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Evaluating Usability and Patient Satisfaction with Online Visual Field-Testing Using Circular Contrast Perimetry

  • Krystal Bharath (Contributor to Paper or Presentation)
  • Daniel Mendoza (Speaker)
  • Terese George (Speaker)
  • Selassie Tagoh (Contributor to Paper or Presentation)
  • Francesc March De Ribot (Contributor to Paper or Presentation)
  • Kwarteng, M. (Speaker)

Activity: Talk or presentation types › Poster presentation

Description

Objective: To evaluate the usability and patient satisfaction of Online Circular Contrast Perimetry (OCCP) (Eyeonic) compared with Standard Automated Perimetry (SAP) among patients in Trinidad and Tobago.
Methods: A cross‑sectional comparative study was conducted from 7th January to 30th April 2026 involving 107 adults recruited from the Eric Williams Medical Sciences Complex and The University of the West Indies (The UWI) Optometry Clinic. Participants aged ≥18 years, with stable or without glaucoma, were randomly assigned to complete either the OCCP or SAP as a first test, with both tests performed in a controlled dark environment. A structured Likert‑scale survey assessed usability and satisfaction, and demographic and clinical data were collected. Descriptive and Mann-Whitney U, Kruskal-Wallis, Dunn-Bonferroni post hoc, and Spearman correlation tests were used to evaluate differences across age, sex, education level, ethnicity, and glaucoma status.
Results: The sample consisted mainly of young adults (18-30 years) (45.8%) and females (61.7%), with most having tertiary education (54.2%). Ethnic distribution was balanced African (37.4%), East Indian (30.8%) and mixed (31.8%), and glaucoma prevalence was comparable between those with (51.4%) vs without (48.6%). Usability and satisfaction scores were high (median 24 and 23 out of 25) but not‑normally distributed. Usability did not differ significantly across demographic or clinical variables (p > 0.05). Satisfaction varied significantly by age (p = 0.002), education level (p = 0.020), and glaucoma status (p < 0.001), with lower satisfaction among younger adults and tertiary‑educated participants. Participants who preferred OCCP (71.0%) reported higher satisfaction than those who preferred SAP or had no preference, and higher usability than those who preferred SAP (p < 0.001). A moderate to strong positive correlation was observed between usability and satisfaction scores (r = 0.657, p < 0.001).
Conclusion: OCCP demonstrated high usability, strong patient satisfaction, and a clear preference among participants, supporting its potential as an accessible, patient‑friendly alternative for glaucoma monitoring. However, lower satisfaction among younger and tertiary-educated participants may reflect higher user expectations.
Period17 Nov 2026
Event title2026 National Health Research Conference
Event typeConference
LocationPort of Spain, Trinidad and TobagoShow on map
Degree of RecognitionInternational