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

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

3.5K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
3.5K
Glaucoma: Overview01:25

Glaucoma: Overview

973
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...
973
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

752
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...
752
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

889
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...
889

You might also read

Related Articles

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

Sort by
Same author

Acute Angle-Closure Glaucoma Secondary to Vitreous Prolapse Following Ocular Trauma.

Case reports in ophthalmological medicine·2026
Same author

The new 15-month pathway for pediatric radiology subspecialty in diagnostic radiology residency: opportunities, challenges, and future considerations.

Pediatric radiology·2026
Same author

The potential of the programmable gaming mouse in diagnostic radiology residency.

Current problems in diagnostic radiology·2026
Same author

Intrahepatic Portosystemic Shunt Causing Hepatic Encephalopathy in a Non-cirrhotic Patient.

Cureus·2025
Same author

Identifying and Supporting Struggling Radiology Residents: A Comprehensive Approach to Enhance Academic and Clinical Competence.

Academic radiology·2025
Same author

Attitudes of Gastroenterologists Regarding Preoperative Anxiety Prior to Colonoscopy: A Cross-Sectional Study.

Digestive diseases and sciences·2025

Related Experiment Video

Updated: Oct 16, 2025

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

162

Expected vs. Actual Refractive Error in Patients Presenting With Phacomorphic Glaucoma.

Alisha Khambati1, Jahan Tajran2, Sarah Syeda3

  • 1School of Medicine, Wayne State University, Detroit, USA.

Cureus
|October 21, 2021
PubMed
Summary

Phacomorphic glaucoma (PG) cataract surgery improves vision and lowers eye pressure. Postoperative refractive error was slightly more myopic than predicted, showing clinical variability.

Keywords:
cataract surgeryphacomorphic glaucomarefractive errorretrospective studyspherical equivalence

More Related Videos

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

6.5K
Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
05:46

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity

Published on: September 20, 2024

559

Related Experiment Videos

Last Updated: Oct 16, 2025

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

162
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

6.5K
Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
05:46

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity

Published on: September 20, 2024

559

Area of Science:

  • Ophthalmology
  • Glaucoma Studies
  • Cataract Research

Background:

  • Phacomorphic glaucoma (PG) is a rare condition necessitating urgent cataract surgery.
  • Accurate prediction of refractive outcomes after cataract surgery is crucial for patient management.

Purpose of the Study:

  • To investigate discrepancies between predicted and actual refractive errors following intraocular lens (IOL) calculations in patients with PG.
  • To evaluate the impact of cataract surgery on visual acuity and intraocular pressure (IOP) in PG patients.

Main Methods:

  • Retrospective analysis of 20 patients with PG undergoing cataract surgery (2009-2018).
  • Collected data included pre- and postoperative best-corrected visual acuity (BCVA), IOP, and refractive error (Spherical Equivalence - SphEq).
  • Compared predicted SphEq from IOL calculations with postoperative manifest refraction SphEq.

Main Results:

  • Cataract surgery in PG patients led to significant improvements in mean BCVA (LogMAR 1.44 to 0.983) and reduction in mean IOP (24.6 mmHg to 19 mmHg).
  • The mean difference between predicted and actual postoperative SphEq was -0.088, indicating a slight myopic shift.
  • A large standard deviation highlighted significant clinical variability in refractive outcomes.

Conclusions:

  • Cataract surgery is effective in improving visual acuity and reducing IOP in patients with phacomorphic glaucoma.
  • A slight, though not statistically significant, myopic refractive shift was observed postoperatively.
  • Clinical outcomes demonstrate variability, underscoring the need for careful refractive management in PG patients.