Comparative evaluation of a new frugal binocular indirect ophthalmoscope.

ABSTRACT:

Objectives

We compare the optical quality and design characteristic a new low cost solar powered binocular indirect ophthalmoscope (BIO), Holo, to Keeler BIO.

Methods

Twenty-four participants each examined 10 simulation eyes using both the Holo and the Keeler BIO with a 30-diopter condensing lens. Number of Lea symbols printed on the retina of simulation eyes seen and time taken to identify them was recorded. Stereoacuity of 12 participants was tested while using the BIOs. Using 7-point Likert scale, participants gave feedback on design characteristic of both BIOs.

Results

There was no statistical difference in number of Lea symbols correctly identified (15.63/20 for Holo vs. 15/20 for Keeler BIO, p = 0.366, paired t test) or time taken to correctly identify each symb

SUBMITTER: Kousha O 

PROVIDER: S-EPMC9829681 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature