COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC:

Get the latest research information from NIH: Menu

The Study of Ocular Hemodynamics With Glaucoma Progression (IGPS)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01145911
Recruitment Status : Completed
First Posted : June 17, 2010
Last Update Posted : March 7, 2017
Information provided by (Responsible Party):
Indiana University

Brief Summary:
To determine the relationships between ocular hemodynamics and glaucomatous optic neuropathy progression.

Condition or disease

Detailed Description:
  1. To determine whether baseline ocular blood flow values are predictive of glaucomatous progression as determined by visual field analysis.
  2. To determine how changes in ocular blood flow are related to visual field progression.
  3. To determine how changes in ocular blood flow are related to changes in optic nerve structure and topographic change over time.

Layout table for study information
Study Type : Observational
Actual Enrollment : 123 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: The Study of Ocular Hemodynamics With Glaucoma Progression
Study Start Date : January 2008
Actual Primary Completion Date : July 3, 2014
Actual Study Completion Date : July 3, 2014

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Glaucoma

Glaucoma patients
Glaucoma patients

Primary Outcome Measures :
  1. Ocular Blood Flow [ Time Frame: various ]
    per visit

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   30 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Glaucoma patients

Inclusion Criteria:

Patients will meet all of the following inclusion criteria to enter the study:

  1. Age: 30 years or older.
  2. Diagnosis: confirmed open-angle glaucoma in at least one eye:

    1. glaucomatous visual field loss on Humphrey 24-2 or 10-2 perimetry
    2. glaucomatous optic disc cupping
    3. agreement between two baseline exams for reliability
  3. Best corrected visual acuity at least 20/60 in at least one eye.
  4. Prior Humphrey visual fields demonstrate acceptable reliability standards (see below).

Exclusion Criteria:

  1. Extensive Humphrey visual field damage consisting of either a mean deviation (MD) < -15 decibels or a clinically determined threat to fixation in both hemifields.
  2. Evidence of exfoliation or pigment dispersion.
  3. History of acute angle-closure or a narrow, occludable anterior chamber angle by gonioscopy.
  4. History of chronic or recurrent inflammatory eye diseases (e.g., scleritis, uveitis).
  5. History or signs of intraocular trauma.
  6. Severe or potentially progressive retinal disease such as retinal degeneration, diabetic retinopathy, and retinal detachment.
  7. Any abnormality preventing reliable applanation tonometry.
  8. Current use of any ophthalmic or systemic steroid which may interfere with this investigation.
  9. Cataract surgery within the past year.
  10. Resting pulse < 50 beats per minute.
  11. Severe, unstable or uncontrolled cardiovascular, renal, or pulmonary disease.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01145911

Layout table for location information
United States, Indiana
Indiana University School of Medicine, Department of Ophthalmology
Indianapolis, Indiana, United States, 46202
Sponsors and Collaborators
Indiana University
Layout table for investigator information
Principal Investigator: Alon Harris, PhD Indiana University School of Medicine
Layout table for additonal information
Responsible Party: Indiana University Identifier: NCT01145911    
Other Study ID Numbers: IGPS
First Posted: June 17, 2010    Key Record Dates
Last Update Posted: March 7, 2017
Last Verified: March 2017
Keywords provided by Indiana University:
Blood Flow
Additional relevant MeSH terms:
Layout table for MeSH terms
Disease Progression
Ocular Hypertension
Eye Diseases
Disease Attributes
Pathologic Processes