Envision Health Technologies, Inc.
Perimetry is an essential component in the diagnosis and monitoring of glaucoma. Since the advent of Standard Automated Perimetry (SAP), one of the clinical standards has been the Humphrey Field Analyzer (HFA, Carl Zeiss AG, Oberkochen, Germany). Visual field (VF) testing provided by the HFA is standard-of-care in glaucoma clinics and other ophthalmology and optometry practices. However, the HFA is a large device that does not allow for examination outside the clinic and can be uncomfortable for patients with limited mobility. This study aims to evaluate a novel head-mounted perimeter against the HFA as an alternative method of VF testing. This new perimeter uses a Virtual Reality (VR) headset and a gamified version of VF testing to assess the visual function of healthy eyes and patients. The results of this study will potentially serve as pilot data for the design of a larger study that involves the full assessment of the VR headset and its VF test, based on various testing strategies.
Procedures: 1. Ophthalmic screening: (a) Visual acuity, slit lamp exam, rebound tonometry (all subjects) 2. OCT examination of the study eye with the Topcon Maestro2 Optical Coherence Tomography (OCT): (a) Standard Retinal Nerve Fiber Layer (RNFL), Optic Disc and Ganglion Cell Complex (GCC) scan patterns (i) Fundus photo is automatically obtained. (b) Abnormalities consistent with ophthalmic disease will be an exclusion for the healthy group of subjects. Reasonable and common artifacts that do not significantly impair the scan report will be accepted. (c) OCT abnormalities consist…
Inclusion / Exclusion Criteria: 1. Age range: 25-70 years 2. For normal subjects: 1. Patient is free of any current or prior ophthalmic pathologies that would potentially cause visual field defects: e.g. retina pathology, glaucoma, cataracts, keratoconus 2. No ocular surgery other than cataract surgery within 6 months prior to the study visit 3. For glaucoma subjects: 1. Patient has a diagnosis of primary open-angle glaucoma 2. Patient is free of any other current or prior ophthalmic pathologies that would potentially cause visual field defects. 3. No other ocular surgery oth…
This study aims to evaluate a novel head-mounted perimeter against the HFA as an alternative method of VF testing. This new perimeter uses a Virtual Reality (VR) headset and a gamified version of VF testing to assess the visual function of healthy eyes and patients.
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