Related Experiment Video
Updated: May 16, 2026
05:05
Ultrasound Cyclo Plasty in Eyes with Glaucoma
Published on: January 26, 2018
Technique for removal of malpositioned Ex-PRESS glaucoma device
Albert S Khouri1, Mohemmed Nazir Khan, Robert D Fechtner
1*Department of Ophthalmology, Institute of Ophthalmology & Visual Science, University of Medicine & Dentistry of New Jersey-New Jersey Medical School, Newark, NJ †Vold Vision, Springdale, AR.
Journal of Glaucoma
|December 11, 2012
Summary
This study presents a straightforward technique for removing a malpositioned Ex-PRESS glaucoma shunt. The method ensures safe removal and allows for subsequent glaucoma surgery.
Area of Science:
- Ophthalmology
- Glaucoma Surgery
- Ophthalmic Devices
Background:
- The Ex-PRESS miniature glaucoma filtration device is used to manage intraocular pressure.
- Malpositioning, impending exposure, or extrusion of the Ex-PRESS shunt can necessitate its removal.
- Effective surgical techniques are crucial for managing complications associated with glaucoma implants.
Observation:
- A case involving the removal of a malpositioned Ex-PRESS shunt from the right eye is described.
- The surgical technique for shunt removal was performed with wound revision.
- The patient's eye healed well following the Ex-PRESS shunt removal procedure.
Findings:
- A step-by-step technique for the safe and controlled removal of a malpositioned Ex-PRESS shunt is detailed.
- The surgical site demonstrated good healing post-explantation.
- A tube shunt was successfully inserted six weeks after Ex-PRESS shunt removal to manage intraocular pressure.
Implications:
- This technique offers a viable solution for surgeons dealing with malpositioned Ex-PRESS shunts.
- The described method can aid in preventing complications such as device exposure or extrusion.
- Successful Ex-PRESS shunt removal and subsequent implantation of alternative glaucoma drainage devices can restore intraocular pressure control.
Related Concept Videos
01:28Angle Closure Glaucoma: Treatment
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...
01:25Glaucoma: Overview
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
01:27Open Angle Glaucoma: Treatment
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...