June 2022
Volume 63, Issue 7
Open Access
ARVO Annual Meeting Abstract  |   June 2022
Validation of a Virtual Visual Acuity Screening for Teleophthalmology in a Pediatric Population
Author Affiliations & Notes
  • Joseph Domenic DeSimone
    Wills Eye Hospital, Philadelphia, Pennsylvania, United States
  • Raziyeh Mahmoudzadeh
    Retina, Wills Eye Hospital, Philadelphia, Pennsylvania, United States
  • Nicholas R Bello
    Wills Eye Hospital, Philadelphia, Pennsylvania, United States
  • Collin A Rozanski
    Wills Eye Hospital, Philadelphia, Pennsylvania, United States
  • Sara M Flanagan
    Wills Eye Hospital, Philadelphia, Pennsylvania, United States
  • Rebecca J Elias
    Wills Eye Hospital, Philadelphia, Pennsylvania, United States
  • Barry N Wasserman
    Wills Eye Hospital Department of Pediatric Ophthalmology, Philadelphia, Pennsylvania, United States
  • Footnotes
    Commercial Relationships   Joseph DeSimone None; Raziyeh Mahmoudzadeh None; Nicholas Bello None; Collin Rozanski None; Sara Flanagan None; Rebecca Elias None; Barry Wasserman None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2022, Vol.63, 4466 – A0176. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Joseph Domenic DeSimone, Raziyeh Mahmoudzadeh, Nicholas R Bello, Collin A Rozanski, Sara M Flanagan, Rebecca J Elias, Barry N Wasserman; Validation of a Virtual Visual Acuity Screening for Teleophthalmology in a Pediatric Population. Invest. Ophthalmol. Vis. Sci. 2022;63(7):4466 – A0176.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Purpose : Telemedicine allows physicians to provide care virtually, limiting patient exposure during the COVID-19 pandemic. As a follow up to a previous analysis (Gore R, et al. IOVS 2021;68:ARVO E-Abstract 146), we performed a retrospective chart review on a separate patient cohort to test whether virtual visual acuity (VA) tests are a reliable means of screening vision in a pediatric population.

Methods : Families screened were sent instructions and an Early Treatment Diabetic Retinopathy Study (ETDRS) eye chart calibrated for 5 feet. Volunteer screeners instructed children over the phone, and those who failed the screen were referred to Wills Eye Hospital (WEH) for further evaluation. The institutional review board at WEH approved the current study. Demographic characteristics and VA screenings (virtual and in-person) were analyzed and compared using Pearson correlation coefficients. Bland-Altman plots were constructed to visualize this comparison.

Results : A total of 242 eyes of 121 patients were included. The mean ± SD age was 11.7±3.1 years. Using Pearson correlations, the in-person and virtual VA measurements were moderately correlated in both the right eye (OD: r=0.506, p<0.001) and left eye (OS: r=0.610, p<0.001). Comparing in-person to virtual settings, the mean ± SD LogMAR of VA of the right eye (OD) was 0.37±0.36 (Snellen 20/46) vs. 0.55±0.30 (Snellen 20/70), respectively (p<0.001). The mean ± SD LogMAR of VA of the left eye (OS) was 0.38±0.43 (Snellen 20/47) in-person vs. 0.52±0.30 (Snellen 20/66) in the virtual setting (p<0.001). However, when the VA range was classified based on the median of in-person VA (LogMAR 0.3, Snellen 20/40), there was no significant difference between in-person and virtual VA measurements in VA >20/40 OD (0.70±0.30, 20/100 vs. 0.67±0.29, 20/93, p=0.538) and OS (0.76±0.45, 20/115 vs. 0.70±0.29, 20/100, p=0.274) (Table 1). Compared to in-person VA measurement (gold standard), the Bland-Altman plot shows a mean difference of 0.17 LogMAR with virtual VA measurements OD (Fig 1A) and a mean difference of 0.14 LogMAR with virtual VA measurements OS (Fig 1B).

Conclusions : An ETDRS VA test delivered at home demonstrated good correlation with a standard ophthalmologist-administered VA test in a pediatric population. Virtual screening may underestimate vision in patients with good vision at the in-person visit, but the virtual screening does not fail to detect poor vision.

This abstract was presented at the 2022 ARVO Annual Meeting, held in Denver, CO, May 1-4, 2022, and virtually.

 

 

×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×