# Retinal Photoreceptor Outer Segment Length Before and After Light Stimulation - a Pilot Study

> **NCT03921931** · NA · RECRUITING · sponsor: **Medical University of Vienna** · enrollment: 35 (estimated)

## Conditions studied

- Macular Degeneration, Dry
- Primary Open-angle Glaucoma

## Interventions

- **OTHER:** White light stimulation

## Key facts

- **NCT ID:** NCT03921931
- **Lead sponsor:** Medical University of Vienna
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2018-11-26
- **Primary completion:** 2026-05-31
- **Final completion:** 2026-05-31
- **Target enrollment:** 35 (ESTIMATED)
- **Last updated:** 2025-05-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03921931

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03921931, "Retinal Photoreceptor Outer Segment Length Before and After Light Stimulation - a Pilot Study". Retrieved via AI Analytics 2026-07-20 from https://api.ai-analytics.org/clinical/NCT03921931. Licensed CC0.

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