Bleb-Preserving Surgical Repair of Post-Trabeculectomy Cyclodialysis using a Capsular Tension Ring: A Case Report
10.3341/jkos.2026.67.6.218
- Author:
Ji Ho PARK
1
;
Jiwoong LEE
;
Sangwoo MOON
Author Information
1. Department of Ophthalmology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea
- Publication Type:Case Report
- From:Journal of the Korean Ophthalmological Society
2026;67(6):218-223
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Purpose:Cyclodialysis can occur after ocular trauma or intraocular surgery and can lead to persistent hypotony and vision loss if not treated appropriately. In eyes with prior trabeculectomy, conventional cyclopexy requires a conjunctival incision, which may compromise a functioning filtering bleb. We present a case in which a capsular tension ring (CTR) was inserted into the ciliary sulcus to repair cyclodialysis without conjunctival incision, preserving the filtering bleb.Case summary: A 65-year-old man developed hypotony, a shallow anterior chamber, and cataract progression after trabeculectomy. Swept-source anterior segment optical coherence tomography revealed approximately 200° of cyclodialysis involving the nasal and temporal quadrants. The patient had already lost vision in the left eye, and the right eye represented the only eye with preserved visual potential. As preservation of the filtering bleb in the right eye was essential, phacoemulsification with intraocular lens implantation was performed, and a CTR was inserted into the ciliary sulcus without conjunctival incision. One day after surgery, anterior segment optical coherence tomography confirmed complete reattachment of the ciliary body. At the 1-year follow-up, the ciliary body remained well attached with no recurrence of cyclodialysis. The filtering bleb appeared clinically diffuse and healthy, and both visual function and intraocular pressure remained stable throughout the follow-up period.
Conclusions:Insertion of a CTR into the ciliary sulcus without conjunctival incision enabled successful closure of the cyclodialysis cleft while preserving filtering bleb function, offering a practical treatment option for eyes with prior trabeculectomy.
