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

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: Treatment01:27

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...
Angle Closure Glaucoma: Treatment01:28

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...
Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...

You might also read

Related Articles

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

Sort by
Same author

From Observation to Prediction: Machine Learning Analysis of Progression of Visual loss in Nonarteritic Anterior Ischemic Optic Neuropathy.

American journal of ophthalmology·2026
Same author

Progression of Nonarteritic Anterior Ischemic Optic Neuropathy (NAION) Occurs Early and Is Unassociated With Modifiable Risk Factors.

American journal of ophthalmology·2026
Same author

A Randomized Sham-Controlled Phase 2/3 Trial of QPI-1007 for Acute Nonarteritic Anterior Ischemic Optic Neuropathy.

Ophthalmology·2025
Same author

Disparities in Medicaid and Medicare physician reimbursements for ophthalmic procedures.

PloS one·2025
Same author

Safety Outcomes Following Implementation of a Systematic Cataract Surgery Protocol at a Tertiary Referral Eye Center.

Journal of patient safety·2025
Same author

Canadian Stroke Best Practice Recommendations, 7th Edition: Cerebral Venous Thrombosis, 2024 - CORRIGENDUM.

The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques·2024

Related Experiment Video

Updated: Jul 15, 2026

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis
13:47

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis

Published on: June 3, 2018

The impact of glaucoma coding in a large claims database.

Paul P Lee1, Leonard A Levin, John G Walt

  • 1Duke University Eye Center, Durham, North Carolina, USA.

American Journal of Ophthalmology
|April 25, 2007
PubMed
Summary

Coding variation in glaucoma patient data has minimal impact on resource consumption analyses. Different International Classification of Diseases, Ninth Revision (ICD-9) codes for open-angle glaucoma did not significantly alter overall healthcare charge findings.

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

Related Experiment Videos

Last Updated: Jul 15, 2026

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis
13:47

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis

Published on: June 3, 2018

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

Area of Science:

  • Ophthalmology
  • Health Informatics
  • Biostatistics

Background:

  • Coding variation in administrative databases poses challenges for accurate population identification.
  • Understanding the impact of different coding algorithms on patient demographics and healthcare utilization is crucial for reliable database analyses.

Purpose of the Study:

  • To assess demographic differences and healthcare charges among open-angle glaucoma patients identified using various International Classification of Diseases, Ninth Revision (ICD-9) coding algorithms.
  • To determine the impact of coding variation on resource consumption analyses in glaucoma research.

Main Methods:

  • Retrospective analysis of a large healthcare database (PharMetrics, Inc., 1998-2003).
  • Identification of three distinct glaucoma cohorts based on hierarchical inclusion of ICD-9 codes.
  • Comparison of demographic characteristics and healthcare charges across the identified cohorts.

Main Results:

  • Three cohorts comprised 64,380, 14,705, and 4,225 unique patients, respectively.
  • Significant demographic variations (age, gender, region, payer, product type, comorbidities) were observed between cohorts.
  • Despite demographic differences, combined cohort analysis showed minimal impact on overall resource consumption.

Conclusions:

  • Coding variation within administrative datasets has a limited effect on the analysis of resource consumption for open-angle glaucoma patients.
  • Findings suggest that current coding practices for glaucoma are sufficiently robust for broad healthcare resource utilization studies.