# Retinal and Choroidal Circulation Changes Following Rapid Ascent to a High Altitude Environment

> **NCT04491500** · — · COMPLETED · sponsor: **Zhongshan Ophthalmic Center, Sun Yat-sen University** · enrollment: 13 (actual)

## Conditions studied

- High Altitude Retinopathy

## Interventions

- **BEHAVIORAL:** High attitude environment

## Key facts

- **NCT ID:** NCT04491500
- **Lead sponsor:** Zhongshan Ophthalmic Center, Sun Yat-sen University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2020-07-27
- **Primary completion:** 2020-08-20
- **Final completion:** 2020-09-10
- **Target enrollment:** 13 (ACTUAL)
- **Last updated:** 2020-09-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04491500

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04491500, "Retinal and Choroidal Circulation Changes Following Rapid Ascent to a High Altitude Environment". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT04491500. Licensed CC0.

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