# The Effects of Changing Light Levels on Contrast Sensitivity in Patients With Glaucoma

> **NCT04061343** · — · COMPLETED · sponsor: **Portsmouth Hospitals NHS Trust** · enrollment: 115 (actual)

## Conditions studied

- Glaucoma

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04061343
- **Lead sponsor:** Portsmouth Hospitals NHS Trust
- **Sponsor class:** OTHER_GOV
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2018-11-20
- **Primary completion:** 2021-03-16
- **Final completion:** 2021-03-16
- **Target enrollment:** 115 (ACTUAL)
- **Last updated:** 2023-04-07


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04061343

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04061343, "The Effects of Changing Light Levels on Contrast Sensitivity in Patients With Glaucoma". Retrieved via AI Analytics 2026-07-12 from https://api.ai-analytics.org/clinical/NCT04061343. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*