Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

1.7K
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...
1.7K
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

1.1K
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...
1.1K
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

1.7K
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...
1.7K

You might also read

Related Articles

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

Sort by
Same author

Effect of intraocular pressure control on visual field progression in the HORIZON trial.

Ophthalmology. Glaucoma·2026
Same author

Evaluation of the Deep Reality Viewer for teaching slit-lamp examination of the anterior segment and the optic nerve head.

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

Comparative Outcomes of Standalone Xen63 Gel Stent and Preserflo Microshunt Implantation: A Multicenter Study.

Clinical ophthalmology (Auckland, N.Z.)·2026
Same author

The Flip Sides of Interventional Glaucoma.

Ophthalmology. Glaucoma·2026
Same author

Standardized Classification System for Dysphotopsia Reporting.

Ophthalmology. Glaucoma·2026
Same author

Structure-Function Correlation of Virtual Reality and Standard Perimetry With Peripapillary RNFL OCT in Glaucoma Patients.

Translational vision science & technology·2026
Same journal

Nationwide Analysis of Eye-Related Emergency Department Visits in South Korea: NEDIS-EYE REPORT 1.

Ophthalmic epidemiology·2026
Same journal

Association Between Demyelinating Disease and Dry Eye Syndrome: A Matched Case-Control Study.

Ophthalmic epidemiology·2026
Same journal

Correspondence: Caution May Be Required with mRNA Covid-19 Vaccinations Related to the Corneal Endothelium.

Ophthalmic epidemiology·2026
Same journal

Longitudinal Development of Macular Ganglion Cell Layer Thickness in Children: The Copenhagen Child Cohort 2000 Eye Study.

Ophthalmic epidemiology·2026
Same journal

Impact of Cataract Surgery on Psychological Well-Being and Economy: The SCOPE Study Protocol.

Ophthalmic epidemiology·2026
Same journal

Online Survey on Myopia Progression Among Chinese Adult Undergraduates: A Pilot Study.

Ophthalmic epidemiology·2026
See all related articles

Related Experiment Video

Updated: May 5, 2026

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
07:11

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

Published on: May 25, 2020

6.9K

Late Presentation for Cataract Surgery: A Case-Control Study.

Angelica Hanna1,2, Minoo Tohidi3, Iqbal Ike K Ahmed4,5

  • 1Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.

Ophthalmic Epidemiology
|March 5, 2026
PubMed
Summary
This summary is machine-generated.

Patients with delayed cataract surgery presentation had more comorbidities and worse visual outcomes. Reducing delays in cataract treatment requires system-wide efforts to improve patient care and surgical access.

Keywords:
Cataractcomplicationslate presentationoutcomes

More Related Videos

Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation
04:59

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

Published on: July 7, 2023

3.1K
Author Spotlight: Unraveling the Molecular Mechanisms in PCO and Fibrosis Following Cataract Surgery
05:19

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

Published on: December 1, 2023

1.7K

Related Experiment Videos

Last Updated: May 5, 2026

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
07:11

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

Published on: May 25, 2020

6.9K
Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation
04:59

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

Published on: July 7, 2023

3.1K
Author Spotlight: Unraveling the Molecular Mechanisms in PCO and Fibrosis Following Cataract Surgery
05:19

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

Published on: December 1, 2023

1.7K

Area of Science:

  • Ophthalmology
  • Public Health

Background:

  • Cataract surgery is a common procedure to restore vision.
  • Delayed presentation for surgery can lead to poorer outcomes.

Purpose of the Study:

  • To identify risk factors for delayed cataract surgery presentation.
  • To compare clinical and sociodemographic characteristics of early versus late presenters.
  • To analyze postoperative outcomes between these groups.

Main Methods:

  • Retrospective case-control study of patients referred for cataract surgery.
  • Late presenters defined as best corrected visual acuity (BCVA) of 20/200 or worse.
  • Analysis included age, sex, socioeconomic status, comorbidities, postoperative BCVA, and intraoperative complications.

Main Results:

  • Late presenters were younger (mean age 68.7 vs. 71.0 years) and had more systemic comorbidities (OR 1.33).
  • Postoperative BCVA was significantly worse in late presenters (median 20/40 vs. 20/25).
  • Late presenters experienced higher rates of perioperative complications (OR 2.77).

Conclusions:

  • Delayed cataract surgery presentation is associated with increased comorbidities, poorer visual outcomes, and higher complication rates.
  • System-wide interventions are necessary to mitigate delays in cataract treatment and improve patient care.