NIH-funded research R21 grant

Understanding how diabetes affects color vision

Official title: Characterizing the spatial distribution of color vision deficiencies in diabetes and prediabetes

Funded at University of Houston · NIH-10827984 · Data updated 2026-11-12

This study is looking at how diabetes and prediabetes affect color vision, especially in different parts of the eye, to help doctors understand and manage eye health better for people with these conditions.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionUniversity of Houston
NIH-funded
Lab location1 site (Houston, United States)
Project startMay 1, 2023
Project endApril 30, 2026
Funding year2024
Award (this year)$193,750
NIH project number5R21EY033958-02
Project IDNIH-10827984 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are adults aged 21 and older who have been diagnosed with diabetes or prediabetes.

Less likely to help

Patients without diabetes or prediabetes, or those with other unrelated vision impairments, may not benefit from this research.

What this research studies

This research investigates how diabetes and prediabetes impact color vision, particularly focusing on the spatial distribution of color vision deficiencies in the retina. By using a custom chromatic microperimeter, the study aims to quantify color discrimination across different areas of the visual field in patients with diabetes. The research will compare the color vision of these patients to that of healthy individuals, correlating the findings with blood sugar levels to better understand the relationship between diabetes and vision loss. The goal is to improve early diagnosis and proactive management of diabetic eye disease.

Why it matters

Potential benefit: If successful, this research could lead to better early detection methods for diabetic eye disease, potentially preventing vision loss in patients.

How similar studies have gone: Previous research has shown that early detection methods for diabetic eye disease can significantly improve patient outcomes, suggesting that this approach may also be effective.

Where this research is happening

  • University of Houston
    Houston, United States
    Active

Researchers

  • Principal investigator: Coates, Daniel Robert — University of Houston
  • Study coordinator: Coates, Daniel Robert

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.