Progression Patterns of Choroidal Venous Alterations

This study is about understanding how a condition called pachychoroid changes over time. Pachychoroid refers to an anatomic choroidal characteristic with abnormally thick choroid or abnormally dilated Haller's vessels. Pachychoroid can range from mild forms which does not cause any problems to more serious ones that might cause vision loss.This study will recruit participants with pachychoroid, to learn more about how this condition develops, how it affects people in the long run, and what factors might make it worse.

NCT Number	NCT07236671
Lead Sponsor	Singapore National Eye Centre Collaborators: National University Hospital, Singapore, University of Malaya, Hong Kong University
Conditions	Pachychoroid Disease
Enrollment	250 participants
Start Date	2025-03-04
Primary Completion	2029-06 (estimated)
Study Completion	2029-08 (estimated)
Updated on ClinicalTrials.gov	2026-06-12