Acta Scientific Ophthalmology (ISSN: 2582-3191)

Research Article Volume 8 Issue 4

Experiment: Comparison of the Dyop Subjective Infant Visual Acuity Test Using a Gray Background Versus a White Background

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

References

  1. Hytowitz AN. “Review of using the Dyop optotype for acuity and refractions”. Journal of Optometry4 (2023): 317.
  2. Gantz L., et al. “Validation of the DYOP visual acuity test”. Journal of Optometry4 (2023): 268-276.
  3. Barnett-Itzhaki G., et al. “The dynamic optotype (Dyop): A novel visual acuity test for use in children”. Journal of AAPOS5 (2021): 285.e1.
  4. Harris PA and Keim E. “Validation of the Dyop™ visual acuity test”. Investigative Ophthalmology and Visual Science 7 (2021): 3888-3892.
  5. “Chromatic Triangulation”.
  6. Sanni IO. “Subjective refractions determined by Dyop® and Snellen chart as optotypes”. Ophthalmology Visual Care (2020).
  7. Stark S. “A comparison of Dyop color perception and dyslexia diagnosis”. Optometry and Visual Performance4 (2020).
  8. Oluwasegun IS. “Dyop color perception as a potential diagnostic”. Acta Scientific Ophthalmology7 (2023).
  9. Gordon P. “Visual acuity: DYOP® versus Snellen acuity charts”. Journal of Clinical Ophthalmology1 (2021): 500-503.
  10. Gordon P and Brewer K. “Visual acuity assessment with a DYOP versus a Snellen acuity chart for pre-and post-cataract surgery”. Optometry and Visual Performance2 (2021).
  11. Sum RW and Woo GC. “Subjective refractions determined by Dyop® and LogMAR chart as fixation targets”. Annals of Eye Science1 (2022): 34.

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.




Metrics

Acceptance rate35%
Acceptance to publication20-30 days
ISI- IF1.042
JCR- IF0.24

Indexed In




News and Events


  • Certification for Review
    Acta Scientific certifies the Editors/reviewers for their review done towards the assigned articles of the respective journals.

Contact US