Related Experiment Video
Updated: Aug 17, 2026

Implantation Protocol of the Foldable Capsular Vitreous Body for Complex Vitreoretinal Surgery
Published on: April 14, 2026
Dense membrane formation after combined phacoemulsification-trabeculectomy surgery
Colin C K Chan1, Ivan Goldberg
1Sydney Eye Hospital, Sydney, New South Wales, Australia. colchan@gmail.com
Abstract:
A case is reported of formation of a dense intraocular membrane following combined phacoemulsification-trabeculectomy surgery. The membrane might have originated from a loose piece of pigment epithelium or might have resulted from dense pigment deposition on a postoperative pupillary membrane. Postoperative membranes have been reported particularly after combined procedures. A combination of intensive topical dexamethasone, homatropine and a Nd:YAG laser was used to speed resolution of the membrane.
Insights
A dense intraocular membrane formed after combined phacoemulsification-trabeculectomy. This complication, potentially from pigment epithelium or deposition, was treated with medication and Nd:YAG laser.
Area of Science:
- Ophthalmology
- Surgical Complications
- Membrane Formation
Background:
- Combined phacoemulsification-trabeculectomy is a surgical procedure for managing cataracts and glaucoma.
- Postoperative membranes can occur, particularly after complex or combined ocular surgeries.
- Understanding the etiology and management of these membranes is crucial for patient outcomes.
Observation:
- A case of dense intraocular membrane formation following combined phacoemulsification-trabeculectomy is presented.
- The membrane's origin is hypothesized to be either a detached pigment epithelial fragment or significant pigment deposition on a pupillary membrane.
- Such postoperative membranes are noted to be more prevalent after combined surgical procedures.
Findings:
- The intraocular membrane was successfully managed using a multimodal approach.
- Treatment involved intensive topical dexamethasone and homatropine.
- Neodymium-doped yttrium aluminum garnet (Nd:YAG) laser application was also utilized to expedite membrane resolution.
Implications:
- This case highlights a potential complication of combined phacoemulsification-trabeculectomy.
- It underscores the importance of recognizing and managing postoperative intraocular membranes.
- The reported treatment strategy offers a potential pathway for resolving such membranes, improving visual function.