Reading aids for adults with low vision

Determining magnification for reading with low vision.

BACKGROUND In the past, practitioners have used distance and/or near visual acuity (VA) to calculate required magnification for low vision aids. Magnification was usually under-estimated when compared with the final magnification prescribed. Recent studies have emphasised the importance of acuity reserve in determining the required magnification for optimum reading rate. Two different approache...

Optical and nonoptical aids for reading and writing in individuals with acquired low vision.

PURPOSE To evaluate the use of optical and nonoptical aids during reading and writing activities in individuals with acquired low vision. METHODS This study was performed using descriptive and cross-sectional surveys. The data collection instrument was created with structured questions that were developed from an exploratory study and a previous test based on interviews, and it evaluated the ...

Optical reading aids for children and young people with low vision.

BACKGROUND Low vision in childhood is a significant barrier to learning and development, particularly for reading and education. Optical low vision aids may be used to maximise the child's functional vision. The World Health Organization (WHO) has previously highlighted the importance of the use of low vision aids in managing children with visual impairment across the world. OBJECTIVES To ass...

Reading Additions in Children and Young Adults with Low Vision – Effects on Reading Performance

Elicited sequential presentation for low vision reading

This paper reports on a variant of the rapid serial visual presentation (RSVP) technique for low vision reading called elicited sequential presentation (ESP). In both techniques, words are presented sequentially at a constant screen location, but with ESP, the reader elicits presentation of each new word by means of a button press, rather than (as with RSVP) being presented with it automaticall...