A peer-reviewed quarterly publication dedicated to professional education for optometrists, vision scientists, occupational therapists, ophthalmologists and other low vision practitioners.

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Education and research delivered right to your inbox! Have the opportunity for correspondence CEs while receiving the latest in low vision clinical and research findings. Article categories include:

  • Clinical Practice
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Visibility (ISSN 2330-0965 – Print) (ISSN 2330-0973 – Online) is published quarterly by Envision University, 610 N. Main Wichita, KS 67203 (316) 440-1515

Copyright © 2020 Envision University. Individual articles are Copyright © 2020 of the indicated authors, printed with permission. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording or any information storage or retrieval system, without written permission of Envision University.

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Visibility 13 Issue 4, 2019

The Effect of Visual Impairment on Balance and Mobility in Adults Over Age 50

Kierstyn Napier-Dovorany, OD; Victoria Graham, PT, DPT, OCS, NCS

Visual impairment (VI) is linked to fall risk in the elderly, and poor health in younger adults. We convened an interdisciplinary team of researchers with expertise in vision and mobility to focus our efforts on best practices in the study of VI and physical mobility. A case control study compared balance and walking function between adults with juvenile onset VI (beginning before age 18), those with adult onset VI (beginning after age 18), and an age and gender matched control group without VI.

Visibility 13 Issue 4, 2019

Clinical Evaluation of the Hybrid Image Display of Oculenz: An Augmented Reality Headset for Age-related Macular Degeneration

Linda Lam, MD MBA; Thomas Finley, MD; Scott Hewitt, COT, CRC, CRA; Deborah Hardison, COMT, OSA; Michael Freeman, JD; Mitchael Freeman

A new hardware and software augmented reality (AR) heads-up display (HUD) headset “Oculenz” has been designed to meet multiple needs at distance and near for patients who have Advanced Macular Degeneration as evidenced by monocular or binocular scotoma(s). The purpose of the study was to explore the capabilities and efficacy of the Oculenz Self-Calibration Visual Field Edge Detection Test and the resulting Modified Real-Time Streaming Video (MRTSV) with AMD subjects when performing tasks such reading the logMAR chart, reading paragraphs from the Contemporaneous Near Eye Chart (CNEC), and facial recognition.

Visibility 13 Issue 3, 2019

Real World Use of the Eye-01 Augmented Reality Visual Aid

Rebecca Kammer, OD, PhD

A new augmented reality (AR) spectacle or head mounted device, Eye-01, has been designed to meet multiple needs at distance, intermediate, and near and essentially replace multiple unique devices. The purpose of the study is to explore the lived experience of users when at home on their own for 2 weeks or more. User data extracted from the device (times of use, settings) was compared to descriptions of use during one-on-one interviews.

Visibility 13 Issue 3, 2019

Are Patterns of Magnifier Selection Changing in Low Vision Patients?

Donald Fletcher, MD; Ron Schuchard, PhD

Optical and electronic/digital magnifiers are available for providing assistance to low vision patients in reading and other detail tasks. The array of electronic devices has expanded greatly in last several years and prices have dropped significantly. This study shows a pattern of low vision patients selecting a much higher proportion of electronic magnifiers than 5 years ago in 2013.

Visibility 13 Issue 2, 2019

Educational Attainment, Missed Clinical Appointments, and Visual Acuity in Age-related Macular Degeneration

Rebecca Deffler, OD; San-San Cooley, OD; Fredrick Davidorf, MD; Bradley Dougherty, OD, PhD

Age-related macular degeneration (AMD) is a leading cause of blindness in older adults. We have previously found that socioeconomic status (SES), as represented by educational achievement, is inversely related to visual acuity in people being treated for AMD. The purpose of this study was to evaluate possible mechanisms for this relationship in patients with AMD, specifically attendance at scheduled clinical appointments with a retina specialist, access to transportation, and driving licensure.

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