Investigating Optical and Neural Causes of Vision Loss

Withdrawn before enrolling

Conditions studied: Macular Degeneration

In brief

With the aging of the population, the prevalence of age-related macular degeneration (AMD) eye disease has resulted in a large number of people suffering from central vision loss. In fact, the most prevalent cause of blindness among veterans is AMD. Since the number of elderly veterans is expected to double in the next 10 years, loss of vision due to AMD is also expected to proportionally and considerably escalate. People with impaired vision have difficulty with daily activities, such as, reading, driving, and recognizing faces. The goal of the research project is to provide information on factors that contribute to visual impairment. This knowledge is necessary for the development of innovative approaches that will optimize the benefit of vision rehabilitation techniques, aimed at improving vision, thus allowing our veterans to maintain function and productivity. The findings from the proposed research will benefit our veterans and all aging people.

Key facts

Study ID

NCT00926913

Run by

US Department of Veterans Affairs

People needed

0

Starts

2014-12-01

Expected to finish

2015-07-01

Last updated by the study team

2015-04-06

Who can join

Age: 50 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Standard inclusion criteria are:
• qualification for entry into the study based on clinical evaluation,
• competence to understand and willingness to sign an informed consent form and participate in the study,
• pupils that dilate to 5 mm or more.
• The inclusion criteria for normal subjects will be:
• corrected visual acuities better than 20/30,
• intraocular pressure less than 21 mm Hg,
• no family history of AMD,
• no history of ophthalmic surgery or neurologic disease,
• no history of diabetes, glaucoma, or a history of elevated intraocular pressure.
• The recruitment will ensure that approximately 40 subjects will fall into each of the three age groups, 50 to 60 years, 61 to 70 years, and 71 years and older. One eye of each subject will be selected at random to be included in the study.

You may not qualify if…

• Ocular opacities that preclude acquiring a clear fundus photograph or refractive errors greater than 4 diopters.

Where it is running

• Jesse Brown VA Medical Center, Chicago, IL — Chicago, Illinois, United States

Full record on ClinicalTrials.gov

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