Clinical trial

Development of the Glaucoma Visual Functioning Questionnaire-40 and Its Psychometric Properties

NCT04722861

StatusUNKNOWN

Study typeOBSERVATIONAL

Start date2020-09-08

PhaseN/A

Study timeline

Study start (actual)2020-09-08Date precision: day

Registry last updated2021-01-25

Observed by CureCurrent2026-10-07

Recorded dates are source observations, not predictions. Missing milestones are not estimated.

Conditions

Primary Glaucomaunresolved

Glaucoma Suspectunresolved

Interventions

GVFQ-40OTHER

Sponsors & collaborators

Zhongshan Ophthalmic Center, Sun Yat-sen Universitylead sponsor

Mapped research locations

GuangzhouGuangdong, China1

Registry source

Open the source record to verify current eligibility, contacts, locations and registry updates.

Open NCT04722861 on ClinicalTrials.gov ↗

Registry-derived research relationships: ClinicalTrials.gov. Raw condition and intervention labels remain distinct from canonical MONDO/RxNorm entities unless separately normalized.