visuALL Field Analyzer (vFA) Compared to Standard Automatic Perimetry

  • STATUS
    Recruiting
  • days left to enroll
    66
  • participants needed
    50
  • sponsor
    Wills Eye
Updated on 9 July 2021
neuropathy
brimonidine tartrate ophthalmic solution
intraocular pressure
eye disease
optic neuropathy

Summary

To determine age-adjusted reference values of the visuALL Field Analyzer (vFA), to assess the repeatability for each parameter and correlate them with a Standard Automatic Perimetry (SAP) parameters.

Description

Standard Automatic Perimetry (SAP) is the gold standard test for the evaluation of different diseases of the visual pathway like glaucoma. Its main goal is to measure the differential light sensitivity at several locations of the central and peripheral field of vision. Nevertheless, the accuracy of the current device is limited by several factors like the inherent inconsistency of the psychophysical test, stressful examinations and frequency of testing among others.

Several devices have been developed since the advent of the Octopus Perimeter3-5 and the Humphrey Field Analyzer (HFA), in an effort to improve early detection of glaucoma.

The main goal of this study is to evaluate the repeatability of a novel psychophysical platform that takes advantage of a Head Mounted Device (HMD) with eye tracking capabilities. Other objectives of this study include the development of an initial reference database and the evaluation of its correlation with HFA parameters.

Details
Condition Pigmentary glaucoma, Open Angle Glaucoma
Treatment Standard Automatic Perimetry Humphrey Field Analyzer, visuALL Field Analyzer
Clinical Study IdentifierNCT03804684
SponsorWills Eye
Last Modified on9 July 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

age 21 to 80 years
Healthy subjects with no eye diseases, normal appearing optic nerve and retina, intraocular pressure less than 19 millimeters mercury and normal standard automatic perimetry (SAP)
mild glaucoma subjects with less than -6 mean deviation
moderate glaucoma subjects with -6 to -12 mean deviation

Exclusion Criteria

spherical refraction outside 3.0 diopters and cylinder correction outside 2.0 diopters
Unreliable SAP (false positives, fixation losses and false negatives greater than 25% and/or observable testing artifacts)
Unreliable visuALL Field Analyzer (vFA) (greater than 25% false positive, excessive fixation losses)
SAP abnormality with pattern loss consistent with neurologic and/or other ocular diseases than glaucoma
Intraocular surgery in study eye (except non-complicated cataract or refractive surgery performed more than 6 months before enrollment and without posterior capsule opacification)
History of systemic condition known to affect visual function
History of medication known to affect visual function
Clear my responses

How to participate?

Step 1 Connect with a study center
What happens next?
  • You can expect the study team to contact you via email or phone in the next few days.
  • Sign up as volunteer to help accelerate the development of new treatments and to get notified about similar trials.

You are contacting

Investigator Avatar

Primary Contact

site

0/250

Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider

Loading...

Browse trials for

Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer

user name

Added by • 

 • 

Private

Reply by • Private
Loading...

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.
Loading...

No annotations made yet

Add a private note
  • abc Select a piece of text from the left.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.
Add a private note