Effect of Topical Brimonidine on Post Cataract Surgery Corneal Edema
Summary
Most patients undergoing cataract surgery suffer from corneal edema after the surgery.
Brimonidine drops are a well known and safe Anti-glaucoma medication. the investigators have made several clinical observations that patients receiving Brimonidine drops had a faster resolution of their corneal edema even if they had normal intra-ocular pressure.
The investigators believe that administering topical Brimonidine to patients with significant post operative corneal edema will hasten the resolution of their corneal edema.
Description
Most patients undergoing cataract surgery suffer from corneal edema after the surgery which temporarily reduces their visual acuity until corneal edema resolves over several weeks Brimonidine drops are a well known and safe Anti-glaucoma medication, used to lower intra ocular pressure.
there have been several clinical observations that patients receiving Brimonidine drops had a faster resolution of their corneal edema even in the presence of normal intra-ocular pressure.
The investigators postulated that administering topical Brimonidine to patients with significant post operative corneal edema will hasten their recovery and visual improvement.
In order to prove that Brimonidine drops contribute to faster resolution of cornel edema and visual improvement, the study will randomly compare 50 post cataract surgery patients (group A)who will be administered Brimonidine to 2 control groups (50 people in each group):
group B will be given topical timolol drops 0.5% (another well recognized anti glaucoma medication which reduces intra-ocular pressure by different mechanism than Brimonidine.
Group C will not be given any test drug. All 3 groups will receive the regular post operative medications which include corticosteroids and antibiotics.
Study Design
Allocation: Randomized, Control: Active Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Conditions
Corneal Edema
Intervention
Brimonidine Tartrate 0.2%, Timolol maleate 0.5%
Location
Rabin medical center ophthalmology deparment
Petah-Tikva
Israel
49100
Status
Not yet recruiting
Source
Rabin Medical Center
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT00800423
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Timolol
A beta-adrenergic antagonist similar in action to PROPRANOLOL. The levo-isomer is the more active. Timolol has been proposed as an antihypertensive, antiarrhythmic, antiangina, and antiglaucoma agent. It is also used in the treatment of MIGRAINE DISORDERS and tremor.
Corneal Neovascularization
New blood vessels originating from the corneal veins and extending from the limbus into the adjacent CORNEAL STROMA. Neovascularization in the superficial and/or deep corneal stroma is a sequel to numerous inflammatory diseases of the ocular anterior segment, such as TRACHOMA, viral interstitial KERATITIS, microbial KERATOCONJUNCTIVITIS, and the immune response elicited by CORNEAL TRANSPLANTATION.
Corneal Edema
An excessive amount of fluid in the cornea due to damage of the epithelium or endothelium causing decreased visual acuity.
Corneal Topography
The measurement of curvature and shape of the anterior surface of the cornea using techniques such as keratometry, keratoscopy, photokeratoscopy, profile photography, computer-assisted image processing and videokeratography. This measurement is often applied in the fitting of contact lenses and in diagnosing corneal diseases or corneal changes including keratoconus, which occur after keratotomy and keratoplasty.
Corneal Perforation
A puncture or hole through the CORNEAL STROMA resulting from various diseases or trauma.
Clinical Trials
This study compares the efficacy and tolerability/comfort of brimonidine/timolol and dorzolamide/timolol in patients with open-angle glaucoma or ocular hypertension. In an investigator ma...
A three-month evaluation comparing the safety and efficacy of a fixed combination of 0.2% brimonidine tartrate/0.5% timolol maleate with that of latanoprost 0.005%, a prostaglandin analogu...
Comparing Effects of Two Fixed Combinations Ophthalmic Solutions on Ocular Blood Flow
A 10 week evaluation, crossover design study including a 3 week washout period between treatments, to determine the effects of fixed combination brimonidine tartrate 0.2%/timolol maleate 0...
Efficacy and safety evaluation of Combigan with timolol when each is used as adjunctive therapy to Xalatan in subjects with glaucoma or ocular hypertension.
To assess the additional benefit of common adjunctive classes on the diurnal IOP curve in patients assessed as needing additional treatment to reach target intraocular pressure (IOP). To d...
PubMed Articles
Effects of brimonidine 0.2%-timolol 0.5% fixed-combination therapy for glaucoma.
PURPOSE: To evaluate the effects of brimonidine 0.2%-timolol 0.5% fixed-combination therapy in the treatment of patients with glaucoma. METHODS: To measure the main treatment effects of a fixed combin...
AimThe aim of this study is to compare the 24-hour efficacy of dorzolamide/timolol-fixed combination (DTFC) and brimonidine/timolol-fixed combination (BTFC) in primary open-angle glaucoma (POAG).Metho...
PURPOSE: To investigate the influence of timolol maleate 0.5% gel-forming solution and brinzolamide 1% ophthalmic suspension on contrast sensitivity, ocular higher-order aberration (HOA), and corneal...
Effects of brimonidine timolol fixed combination therapy on anterior ocular segment configuration.
PURPOSE: To assess the effects of brimonidine and of brimonidine and timolol fixed combination (BTFC) therapy on the pupil and angle structures in both normal subjects and in open angle glaucoma patie...
Brimonidine Hypersensitivity when Switching Between 0.2% and 0.15% Formulations.
Abstract Purpose: To investigate hypersensitivity rates in patients switched from brimonidine-purite 0.15% to generic brimonidine 0.2%, and to then investigate hypersensitivity rates to re-initiated b...
