# Iris Color and Day-Night Changes in the Sympathovagal Ratio

> **NCT05759715** · — · COMPLETED · sponsor: **Ankara Ataturk Sanatorium Training and Research Hospital** · enrollment: 621 (actual)

## Conditions studied

- Iris Diseases

## Interventions

- **OTHER:** Iris Color Measurement , LF/HF Measurement

## Key facts

- **NCT ID:** NCT05759715
- **Lead sponsor:** Ankara Ataturk Sanatorium Training and Research Hospital
- **Sponsor class:** OTHER_GOV
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2016-05-05
- **Primary completion:** 2022-05-05
- **Final completion:** 2022-06
- **Target enrollment:** 621 (ACTUAL)
- **Last updated:** 2023-03-09


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05759715

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05759715, "Iris Color and Day-Night Changes in the Sympathovagal Ratio". Retrieved via AI Analytics 2026-06-14 from https://api.ai-analytics.org/clinical/NCT05759715. Licensed CC0.

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