visuALL Field Analyzer (vFA) Compared to Standard Humphrey Automated Perimetry

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

72 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-01-08

Study Completion Date

2020-10-20

Brief Summary

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To determine age-adjusted reference values of the visuALL Field Analyzer (vFA) retinal sensitivity and to assess the repeatability of the measured values and compare them with those measured by a Standard Automatic Perimetry (SAP).

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Detailed Description

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Standard Automatic Perimetry (SAP) is the gold standard test for the evaluation of central and peripheral retinal sensitivity to light for detection and monitoring optic nerve diseases such as glaucoma. The current device has its own limitation such as positioning for the duration of the test which makes is hard for older patients especially those with back or other musculoskeletal diseases, artifact of the corrective lenses used to accommodate the patients refractive errors, etc.

Several devices have been developed since the advent of the Octopus Perimeter 3-5 and the Humphrey Field Analyzer (HFA), in an effort to improve the test reliability and patient comfort.

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 comparison of the measured parameters with HFA.

Conditions

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Glaucoma, Open-Angle

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Healthy Controls

Healthy subjects between 21 and 80 years of age with no eye diseases (normal appearing optic nerve and retina, intraocular eye pressure less than 19 millimeters of mercury, normal and reliable standard automatic perimetry, and spherical refraction less than 3 diopters and cylinder correction equal to 2 diopters or less. All subjects will perform Standard Automatic Perimetry Humphrey Field Analyzer and visuALL Field Analyzer to measure peripheral and central visual field.

Group Type EXPERIMENTAL