BACKGROUND Several epidemiological studies have shown that self-reported vision and hearing impairments are associated with adverse health outcomes (AHOs) in older populations; however, few studies have used objective sensory measurements or investigated the role of gender in this association. Therefore, we examined the association of vision and hearing impairments (as measured by objective met...

PURPOSE To validate the German-translated Low Luminance Questionnaire (LLQ), a vision-related quality of life scale assessing mainly mesopic and scotopic functioning, and to determine the relationship between the severity of vision impairment, ocular conditions, and low luminance-related visual functioning. METHODS In all, 274 participants, 184 patients with visual acuity <6/12 or a long-stan...

BACKGROUND Visual function is important for optimal orientation in functional and social life, and has an effect on physical and emotional well-being. Visual impairment, therefore, leads to restrictions in all aspects of daily living and is related to quality of life. The aim of this study was to provide information on the causes of visual impairment in patients presenting to their family physi...

INTRODUCTION There is an increasing awareness about the needs of students with low vision, particularly in developing countries where programs of integrated education are being developed. However, the appropriate low vision services are usually neither available, nor affordable. OBJECTIVES To study the profile of students with low vision in Lumbini Zone of Nepal. MATERIALS AND METHODS A cro...

BACKGROUND Respective and combined effects of impairments in sensorimotor systems and cognition on gait performance have not been fully studied. This study aims to describe the respective effects of impairments in muscle strength, distance vision, lower-limb proprioception and cognition on the Timed Up & Go (TUG) scores (i.e., performed TUG [pTUG], imagined TUG [iTUG] and the time difference be...

PURPOSE To review the existing knowledge on vision health disparities in major adult vision health outcomes (age-related macular degeneration, diabetic retinopathy, glaucoma, cataract, refractive errors) and visual impairment and to identify knowledge gaps as related to the development of enhanced vision health surveillance in the United States. DESIGN Literature review. METHODS Analysis of...

PURPOSE To examine the ability of current surveillance systems to assess and monitor disparities in: (1) vision impairment, (2) eye disease, (3) vision-related functioning, (4) access to vision and eye care, and (5) access to supports and services for those needing vision rehabilitation. DESIGN Review of surveillance systems and instruments. METHODS We defined surveys and surveillance syste...

PURPOSE The aim of this study was to determine whether visual impairment and age affected driver performance and safety rated during in-traffic driving conditions. METHODS Participants included 30 younger, 25 middle-aged, and 35 older subjects with normal vision and 47 older subjects with visual impairment. All subjects were legally eligible to drive. Driving performance was assessed during i...

This study describes a computer vision approach for sensing the environment with the intent of helping people with a visual impairment. The principal goal in applying computer vision is to exploit, in an optimal fashion, the information acquired by the camera(s) to yield useful descriptions of the viewed environment. The objective is to seek efficient and reliable guidance cues in order to impr...