Clinical Trials Logo
  1. Home
  2. Glaucoma
  3. NCT00275756

Effects of Common Topical Glaucoma Therapy on Optic Nerve Head Blood Flow Autoregulation During Increased Arterial Blood Pressure and Artificially Elevated Intraocular Pressure in Healthy Humans

Glaucoma Clinical Trial

Official title:
Effects of Common Topical Glaucoma Therapy on Optic Nerve Head Blood Flow Autoregulation During Increased Arterial Blood Pressure and Artificially Elevated Intraocular Pressure in Healthy Humans

Clinical Trial Summary

Background

Autoregulation is the ability of a vascular bed to maintain blood flow despite changes in perfusion pressure. The existence of an effective autoregulation in the optic nerve circulation has been shown in animals and humans. The exact mechanism behind this autoregulation is still unknown. The motive for the investigation of optic nerve head (ONH) blood flow autoregulation is to enhance the understanding of pathologic eye conditions associated with ocular vascular disorders. To clarify the regulatory mechanisms of ONH microcirculation is of critical importance to understand the pathophysiology of glaucoma, because there is evidence that glaucoma is associated with optic nerve head ischemia. Several studies indicate that a disturbed autoregulation might contribute to glaucomatous optic neuropathy. Currently, five classes of intraocular pressure (IOP) reducing drugs are available for topical therapy in patients with glaucoma or elevated intraocular pressure. These drugs have also vasoactive properties, which may influence both the resting ocular circulation and the autoregulatory mechanisms of blood flow during changes in ocular perfusion pressure.

Study objective

To investigate the influence of common topical glaucoma therapy on ONH blood flow regulation during changes in IOP and systemic arterial blood pressure.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Basic Science

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00275756
Study type Interventional
Source Medical University of Vienna
Contact
Status Withdrawn
Phase N/A
Start date September 2008
Completion date November 2014
View Details
See also
  Status Clinical Trial Phase
Recruiting NCT06000865 - Glaucoma Rehabilitation With Action viDeo Games and Exercise - GRADE N/A
Recruiting NCT06278597 - Automatic Evaluation of the Anterior Chamber Angle Width by a New Non-contact Optical Device N/A
Active, not recruiting NCT04271709 - Manhattan Vision Screening and Follow-Up Study (NYC-SIGHT) N/A
Recruiting NCT03274024 - The Asia Primary Tube Versus Trab (TVT) Study N/A
Completed NCT04552964 - Assessment of the Impact of an add-on and Its Smartphone Application on the Daily Management of Glaucoma N/A
Recruiting NCT01957267 - Functional and Structural Imaging for Glaucoma
Active, not recruiting NCT04624698 - iStent Inject New Enrollment Post-Approval Study N/A
Completed NCT04020705 - The Efficacy of Citicoline in Eyedrops (OMK1) in Reducing the Progression of Glaucoma N/A
Completed NCT03150160 - Additive Effect of Twice-daily Brinzolamide 1%/Brimonidine 0.2%Combination as an Adjunctive Therapy to Travoprost in Patients With Normal Tension Glaucoma Phase 4
Not yet recruiting NCT05581498 - Glaucoma Exercise as Medicine Study (GEMS). N/A
Recruiting NCT02921568 - Side-by-Side Comparison of P200TE and Spectral OCT/SLO on Diseased Eyes N/A
Active, not recruiting NCT02901730 - Clinical Study of LPI With Different Laser Wavelengths N/A
Completed NCT02955849 - A Trial of China Laser and Surgery Study Glaucoma in Rural China Early Phase 1
Recruiting NCT02471105 - Investigation of IOP and Tolerability of Bimatoprost 0.01% and Tafluprost Unit Dose Preservative Free 15 Microgram/ml Phase 4
Recruiting NCT02554214 - Pilot Clinical Trial on a New Adjustable Glaucoma Drainage Device N/A
Active, not recruiting NCT02390284 - Stop Retinal Ganglion Cell Dysfunction Study Phase 3
Completed NCT02653963 - Triamcinolone for Ahmed Glaucoma Valve N/A
Completed NCT02520674 - Glaucoma Screening With Smartphone Ophthalmology N/A
Completed NCT02390245 - Philadelphia Telemedicine Glaucoma Detection and Follow-Up Study N/A
Completed NCT02246764 - Study of Netarsudil (AR-13324) Ophthalmic Solution in Patients With Glaucoma or Ocular Hypertension Phase 3