Visibility Vol 7 Issue 3, 2013

Keeping Track of Position and Orientation During Mobility With Visual Impairment

Spatial updating refers to the ability to keep track of one’s position and orientation while moving through an environment. People with low vision sometimes become disoriented, even in familiar environments. We asked how different forms of visual impairment affect spatial updating, and what role non-visual cues may play. To study the impact of visual impairment, normally sighted subjects wore goggles to simulate reduced acuity and severe field restriction. We reduced acoustic information in the environment by auditory noise masking. We reduced the signals generated by walking from muscles and joints (proprioceptive and kinesthetic) by moving subjects while they sat passively in a wheelchair.

A person helping another person with a reading aide

Well-Being and Mental Health Factors among Informal Caregivers of Individuals with Visual Impairments

Callie Victor, PhD, OTR/L, CLA; Matthew Haase, MS, OTR/L, ATC; Michael Bown; Lindsey Bates, OTR; Michael Centra, OTR/L; Jaclyn Sachleben; Elizabeth Tyson; Michelle Gamber, DrPH; Suleiman Alibhai

View Article
Man using magnifier on glasses

Characteristics of Older Bioptic Drivers: Effects of Increasing Age on Driving Safety

Bradley E. Dougherty, OD, PhD

Download Article
Laboratory computer

Patient Responses to a Teleophthalmology Enabled Primary Care Based Diabetic Retinopathy Surveillance Program

Rajeev Ramchandran, MD, MBA ; Katherine Fallano, MD; Vanessa Desmore; Elizabeth Czirr, BA; Silvia Sörensen, PhD

Download Article