Mobility and access to transport issues as experienced by people with vision impairment living in urban and rural Ireland.

Purpose: The loss of vision is associated with the impairment of functional ability, including a reduced ability to move around and to utilise all forms of transport. Walking in unfamiliar environments is challenging and driving becomes a legal prohibition. This article explores mobility and access to transport issues of urban and rural dwelling people with vision impairment in Ireland.

Rasch analysis of the daily living tasks dependent on vision (DLTV).

Purpose: To examine internal consistency, refine the response scale, and obtain a linear scoring system for the visual function instrument, the Daily Living Tasks Dependent on Vision (DLTV).

Methods: Data were available from 186 participants with a clinical diagnosis of AMD who completed the 22-item DLTV (DLTV-22) according to four-point ordinal response scale. An independent group of 386 participants with AMD were administered a reduced version of the DLTV with 11 items (DLTV-11), according to a five-point response scale.

Image registration and subtraction for the visualization of change in diabetic retinopathy screening.

Diabetic retinopathy (DR) is a leading cause of blindness in people of working age in developed countries. DR is characterized by lesions of the retinal microvasculature. This paper describes a technique for visualizing the changes which occur in retinal pathology over a 1 year interval.