Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Angle Closure Glaucoma: Treatment

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...

Open Angle Glaucoma: Treatment

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...

Glaucoma: Overview

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Outcomes of allogeneic ocular surface stem cell transplantation.

Frontiers in ophthalmology·2026

Same author

Comparing Global Operating Room Waste Generated From Cataract, Corneal, and Conjunctival Surgeries.

Cornea·2026

Same author

Global Consensus on Keratoconus and Ectatic Diseases-Edition 2.

Cornea·2026

Same author

Peeling-Off Spiral DALK: 10-Year Experience.

Cornea·2026

Same author

Noninfectious interface keratitis as a sign of severe deep anterior lamellar keratoplasty stromal rejection.

Canadian journal of ophthalmology. Journal canadien d'ophtalmologie·2026

Same author

Cataract surgery in keratoconus: current challenges and future directions.

Current opinion in ophthalmology·2025

Search research articles

Related Experiment Video

Updated: Aug 18, 2025

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

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

Published on: July 7, 2023

Dilation devices in cataract surgery.

Enrica Sarnicola^1,2, Caterina Sarnicola^2,3, Vincenzo Sarnicola^1,2

¹Ambulatorio di Chirurgia Oculare Santa Lucia.

Current Opinion in Ophthalmology

|December 9, 2022

Summary

This summary is machine-generated.

Mechanical pupil expansion devices effectively manage small pupils during cataract surgery when pharmacologic dilation fails. These devices improve surgical conditions and reduce complication risks in challenging cases.

More Related Videos

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Published on: March 8, 2019

Author Spotlight: Unraveling the Molecular Mechanisms in PCO and Fibrosis Following Cataract Surgery

Author Spotlight: Unraveling the Molecular Mechanisms in PCO and Fibrosis Following Cataract Surgery

Published on: December 1, 2023

Related Experiment Videos

Last Updated: Aug 18, 2025

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

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

Published on: July 7, 2023

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Published on: March 8, 2019

Author Spotlight: Unraveling the Molecular Mechanisms in PCO and Fibrosis Following Cataract Surgery

Author Spotlight: Unraveling the Molecular Mechanisms in PCO and Fibrosis Following Cataract Surgery

Published on: December 1, 2023

Area of Science:

Ophthalmology
Surgical Devices

Background:

Small pupils pose a significant challenge during cataract surgery, increasing complication risks.
Pharmacologic pupil dilation may be insufficient in some patients, necessitating alternative methods.

Approach:

This review assesses available mechanical pupil expansion devices for ophthalmic surgery.
The evaluation considers device design, materials, and usability.

Key Points:

A variety of pupil expansion devices are commercially available.
These devices differ in design, material, size, cost, and ease of use.
All assessed devices appear effective in enlarging the pupil and facilitating cataract surgery.

Conclusions:

Mechanical pupil expansion is a viable and effective method for managing small pupils during cataract surgery.
These devices are well-tolerated and can significantly ease surgical procedures in cases of poor mydriasis.