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Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...

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Related Experiment Video

Updated: Jul 19, 2025

Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation

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Published on: July 7, 2023

Severe proptosis during cataract surgery.

Lauren Ton¹, Wanlin Zhang², Murtaza Saifee³

¹School of Medicine, University of California San Francisco, San Francisco, CA, USA.

American Journal of Ophthalmology Case Reports

|August 9, 2023

Summary

This summary is machine-generated.

Severe eye bulging during cataract surgery in a patient with glaucoma drainage devices resolved quickly. This rare complication may be linked to fluid buildup behind the eye, suggesting concurrent surgery might be beneficial.

Keywords:

Glaucoma drainage device Phacoemulsification Proptosis

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Ultrasound Cyclo Plasty in Eyes with Glaucoma

Ultrasound Cyclo Plasty in Eyes with Glaucoma

Published on: January 26, 2018

Area of Science:

Ophthalmology
Glaucoma Surgery
Cataract Surgery

Background:

A 58-year-old female with a complex ocular history, including Crohn's disease, chronic panuveitis, central retinal vein occlusion, and steroid-induced ocular hypertension, underwent phacoemulsification.
The patient had previously received bilateral Ahmed glaucoma drainage devices (GDDs) with pars plana tube placement for uncontrolled ocular hypertension.

Observation:

During phacoemulsification of the right eye, the patient experienced sudden and severe proptosis (eye bulging).
The proptosis spontaneously resolved within 20 minutes after removal of the lid speculum and gentle eyelid manipulation, without the need for a lateral canthotomy.
No permanent visual complications were noted in the affected eye.

Findings:

The likely cause of the intraoperative proptosis was retrobulbar fluid accumulation.
This fluid accumulation is hypothesized to be related to the functioning Ahmed GDD with a pars plana tube placed in the vitreous cavity.

Implications:

This case highlights a rare but significant complication of combining cataract surgery with existing glaucoma drainage devices.
Consideration of concurrent cataract surgery at the time of pars plana tube placement for GDDs may help mitigate the risk of intraoperative proptosis.
Further investigation into the pathophysiology of retrobulbar fluid dynamics in patients with GDDs is warranted.