Effect of Late Ripcord Removal From Glaucoma Drainage Device
Prospective, Single-arm Interventional Study to Determine Effect of Late Ripcord Removal From Glaucoma Drainage Device
Who can join
Ages 18 and older · All sexes
Full eligibility criteria
Inclusion Criteria: * Age \> 18 years * Placement of Ahmed Clear Path or Baervelt drainage device with ripcord \> 3 months * Diagnosis of Glaucoma, under active management at Duke Eye Center Glaucoma Clinic * Ripcord suture still in place and accessible for removal * Able to provide written informed consent * IOP \> 10 mm Hg Exclusion Criteria: * Active ocular infection or conjunctivitis in either eye * Inability to undergo ripcord removal procedure * Scheduled for further glaucoma surgery
About the study
This is a research study to find out if removing the ripcord from a glaucoma drainage device more than 3 months after it has been placed has any effect on intraocular pressure. Participation in research studies is voluntary.
The ripcord will be removed at a routine glaucoma care visit and intraocular pressure will be measured before removal, 30 minutes following, and at 1 week, 6 weeks and 3-month intervals during regular clinic visits.
What is being tested
- Ripcord removal (procedure)
Sponsor: Duke University · Participants: 80 · Started: 2026-12
Contact the study team
- Jonathan Shepherd · Phone: (919) 681-3937
Official record on ClinicalTrials.gov — NCT07803536
Locations in the U.S.
| North Carolina | Duke University Eye Center, Durham |
Conditions
From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.