Sanni Isiaka Oluwasegun*

Makkah Specialist Eye Hospital Bauchi, Albasar International Foundation, Kobi Street, Old Ministry of Works, Bauchi, Nigeria

*Corresponding Author: Sanni Isiaka Oluwasegun, Makkah Specialist Eye Hospital Bauchi, Albasar International Foundation, Kobi Street, Old Ministry of Works, Bauchi, Nigeria.

Received: March 04, 2025; Published: March 10, 2025

Abstract

The Dyop Infant Test offers a novel, motion-based method for assessing visual acuity in infants, overcoming the limitations of traditional optotype testing for non-verbal subjects. This study evaluates the efficacy of using a gray versus a white background in tracking visual acuity development in an infant tested at 80, 95, and 100 days of age. Visual acuity was measured by detecting motion of the smallest diameter Dyop ring. Results indicate that visual acuity improved with age across both backgrounds, reflecting normal developmental progression.
The white background consistently facilitated better detection of Dyop motion, likely due to higher contrast sensitivity. However, the gray background provided more accurate measurements of resolution acuity, as the merging of black segments and white gaps into the gray ring represented the threshold for detecting motion. These findings highlight the importance of background contrast in visual acuity testing and suggest that the Dyop Infant Test on a gray background serves as a reliable tool for early detection of visual development issues. Future research with larger sample sizes is recommended to further validate these findings and explore the clinical implications for populations with visual impairments.

Keywords: Gray Background; White Background; Visual Acuity; Motion-Based Acuity Testing; Dyop Infant Test

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Citation

Citation: Sanni Isiaka Oluwasegun. “Experiment: Comparison of the Dyop Subjective Infant Visual Acuity Test Using a Gray Background Versus a White Background".Acta Scientific Ophthalmology 8.4 (2025): 02-05.

Copyright

Copyright: © 2025 Sanni Isiaka Oluwasegun. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.