Related Experiment Video
Updated: Jul 2, 2026

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation
Published on: March 12, 2016
Additive effect of dorzolamide hydrochloride to patients taking travoprost: a retrospective study
1Department of Veterans Affairs, Illiana Healthcare System, Danville, Illinois 61832, USA. Stephen.boyer@med.va.gov
Background:
A retrospective chart review study at a Veterans Affairs hospital evaluated intraocular pressure change after dorzolamide hydrochloride 2% was administered to patients already using travoprost. A literature search found no other study that looked specifically at this combination of drugs.
Methods:
A chart review of 46 patients at the Veterans Affairs Illiana Health Care System was performed evaluating the intraocular pressures after dorzolamide hydrochloride was added to travoprost. Baseline intraocular pressures were obtained on patients who had been on travoprost at least 4 months. Endpoint intraocular pressures were then obtained from the visit closest to 6 months after the addition of dorzolamide hydrochloride.
Results:
An average intraocular pressure reduction of an additional 20.6% was observed after adding only dorzolamide hydrochloride to travoprost.
Conclusions:
This study confirmed our clinical observations that dorzolamide hydrochloride added to travoprost is an excellent and safe choice to further lower intraocular pressures.
Related Concept Videos
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Angle Closure Glaucoma: Treatment
Glaucoma: Overview
Ophthalmic Drug Delivery Systems
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption