Testing Pediatric Acuity With an iPad: Validation of "Peekaboo Vision" in Malawi and the UK.

ABSTRACT:

Purpose

To evaluate two builds of the digital grating acuity test, "Peekaboo Vision" (PV), in young (6-60 months) populations in two hospital settings (Malawi and United Kingdom).

Methods

Study 1 evaluated PV in Blantyre, Malawi (N = 58, mean age 33 months); study 2 evaluated an updated build in Glasgow, United Kingdom (N = 60, mean age 44 months). Acuities were tested-retested with PV and Keeler Acuity Cards for Infants (KACI). Bland-Altman techniques were used to compare results and repeatability. Child engagement was compared between groups. Study 2 included test-time comparison.

Results

Study 1 (Malawi): The mean difference between PV and KACI was 0.02 logMAR with 95% limits of agreement (LoA) of 0.33 to 0.37 LogMAR. On test-retest, PV demonstrated 9

SUBMITTER: Livingstone I 

PROVIDER: S-EPMC6327755 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature