AUgmented REality for the Visually Impaired - Part 1 (AUREVI 1)

Centre Hospitalier Universitaire de Nīmes

Status: Completed

Conditions: Glaucoma; Retinitis Pigmentosa

Treatments: Procedure: Performance of color correction; Procedure: Effectiveness of brightness control; Device: Vuzix Wrap 1200DX virtural reality glasses; Procedure: Find the size of the visual field; Procedure: Find visual comfort threshold related to light intensity

Study type: Interventional

Funder types: Other

Identifiers

NCT02614651

2016-A00099-42 (Other Identifier)

LOCAL/2015/IMGD-01

Details and patient eligibility

About

The main objective of this study is to quantify vision parameters in subjects with concentric visual field constriction, and this in relation to the display on virtual reality goggles. More specifically:

• The maximum brightness value for visual comfort (THRESHOLD_MAX)
• The minimum value of the perceptible light contrast in low light perceptible (THRESHOLD_MIN)
• The speed of light change adaptation in the range [THRESHOLD_MAX-THRESHOLD_MIN] and [THRESHOLD_MIN-THRESHOLD_MAX].

Full description

Secondary objectives are to:

A. Quantifying the device parameters "RV glasses + camera" depending on visual acuity and the visual field of each subject:

• Optimal extent of the visual field provided by the device "RV glasses + camera".

B. Measuring the effectiveness of different image processing algorithms used in the development of the software part of this technical assist device:

• Capture and display HDR images (High Dynamic Range)
• Color adjustment.

Enrollment: 15 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• The patient must have given his/her informed and signed consent
• The patient must be insured or beneficiary of a health insurance plan
• The subject is suffering from retinitis pigmentosa or glaucoma with concentric visual field constriction and presents with:
• An acuity in the better eye superior or equal to 1/10 in near vision,
• A binocular field of between 1° and 30°,
• A good central fixation, absence of central scotoma,
• Motor capability for using a computer keyboard with one hand.

Exclusion criteria

• The patient is participating in another study
• The patient is in an exclusion period determined by a previous study
• The patient is under judicial protection, or under guardianship
• The patient refuses to sign the consent
• It is impossible to correctly inform the patient
• Subjects with (or evolving toward) a multiple sensory disability, or one including cognitive disorders

Trial design

Primary purpose: Basic Science

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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15 participants in 1 patient group

The study population

Experimental group

Description:

The study population consists of subjects with a concentric constriction of the visual field (retinitis pigmentosa, glaucoma) whose motor capacity allows the use of a computer keyboard with one hand. Subjects are recruited on a voluntary basis, from information disseminated to professionals in the rehabilitation of functional low vision and patient associations, in the Ophthalmology Service of the University Hospital of Nimes and within the ARAMAV Institute. Intervention: Find visual comfort threshold related to light intensity Intervention: Find the size of the visual field Intervention: Effectiveness of brightness control Intervention: Performance of color correction Intervention: Vuzix Wrap 1200DX virtural reality glasses

Treatment:

Procedure: Find visual comfort threshold related to light intensity

Procedure: Find the size of the visual field

Procedure: Performance of color correction

Device: Vuzix Wrap 1200DX virtural reality glasses

Procedure: Effectiveness of brightness control