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Related Experiment Video

Updated: May 28, 2026

Modeling Cataract Surgery in Mice

Modeling Cataract Surgery in Mice

Published on: December 1, 2023

Cataract surgery after trabeculectomy: the effect on trabeculectomy function.

Rahat Husain¹, Shen Liang, Paul J Foster

¹Singapore National Eye Center, Singapore.

Archives of Ophthalmology (Chicago, Ill. : 1960)

|October 12, 2011

Summary

Timing cataract surgery after trabeculectomy impacts its success. Shorter intervals increase the risk of trabeculectomy failure, compromising intraocular pressure control in glaucoma patients.

Related Experiment Videos

Last Updated: May 28, 2026

Modeling Cataract Surgery in Mice

Modeling Cataract Surgery in Mice

Published on: December 1, 2023

Area of Science:

Ophthalmology
Glaucoma Management
Surgical Outcomes

Background:

Trabeculectomy is a common glaucoma surgery to lower intraocular pressure (IOP).
Cataract surgery is frequently performed after trabeculectomy in patients with co-existing conditions.
The impact of cataract surgery timing on trabeculectomy function requires investigation.

Purpose of the Study:

To evaluate the effect of the interval between trabeculectomy and cataract surgery on the long-term success of the trabeculectomy.
To determine if earlier cataract surgery increases the risk of trabeculectomy failure.

Main Methods:

A cohort study nested within a randomized clinical trial involving 235 glaucoma patients with prior trabeculectomy.
Cox regression analysis was used to assess the association between the time from trabeculectomy to cataract surgery and trabeculectomy failure.
Trabeculectomy failure was defined as intraocular pressure > 21 mm Hg.

Main Results:

124 participants (52.7%) underwent cataract surgery at a median of 21.7 months post-trabeculectomy.
A shorter time between trabeculectomy and cataract surgery was significantly associated with an increased risk of trabeculectomy failure (HR 1.73).
The risk of failure increased substantially with earlier cataract surgery, e.g., 3.00 at 6 months post-trabeculectomy.

Conclusions:

Cataract surgery following trabeculectomy is linked to a higher rate of trabeculectomy failure.
Performing cataract surgery sooner after trabeculectomy significantly elevates the risk of trabeculectomy failure.
Ophthalmologists should consider the timing of cataract surgery to preserve trabeculectomy function.