Related Experiment Video
Updated: Jul 10, 2026

07:03
Bilayer Microfluidic Device for Combinatorial Plug Production
Published on: December 1, 2023
Novel micromachined valved glaucoma drainage devices
Kouhyar Tavakolian1, Bozena Kaminska, Teimour Maleki Jafarabadi
1Comput. & Integrative Bioeng. Res., Simon Fraser Univ., Burnaby, BC, Canada. ktavakol@sfu.ca
Summary
Two novel glaucoma valve devices were developed to manage intraocular pressure. These valves can treat high eye pressure (hypertony) or prevent low eye pressure (hypotony) using a unique buckling fluid channel mechanism.
Area of Science:
- Ophthalmology
- Biomedical Engineering
- Medical Devices
Background:
- Glaucoma is a leading cause of irreversible blindness worldwide.
- Elevated intraocular pressure (hypertony) is a primary risk factor for glaucoma.
- Managing intraocular pressure fluctuations, including hypotony, is crucial for effective glaucoma treatment.
Purpose of the Study:
- To introduce two innovative valve devices for glaucoma management.
- To demonstrate the potential of these devices in regulating intraocular pressure.
- To present novel mechanisms for controlling fluid dynamics within the anterior chamber.
Main Methods:
- Development of two novel valve prototypes for glaucoma treatment.
- Design based on the buckling of a fluid channel connected to the anterior chamber.
- One valve is fully mechanical; the second is magnetically driven.
Main Results:
- The proposed valves offer a mechanism for dynamic control of intraocular pressure.
- The devices are designed to address both hypertony and hypotony.
- The study presents a novel application of buckling principles in ophthalmic devices.
Conclusions:
- The developed valve devices represent a promising advancement in glaucoma treatment.
- These novel devices offer potential for improved management of intraocular pressure.
- Further research and clinical trials are warranted to validate the efficacy and safety of these innovative glaucoma treatments.
Related Concept Videos
Glaucoma: 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...
Open 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...
Angle 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...
