This review aims to document the efficacy and validity of vision therapy for modifying and improving vision functioning. The paper describes the essential components of the visual system and disorders which can be physiologically and clinically identified. Vision therapy is defined as a clinical approach for correcting and ameliorating the effects…

THE FOLLOWING IS THE FULL TEXT OF THIS DOCUMENT: Video visual aids are Closed Circuit TV systems (CCTV's) which magnify print and enlarge it electronically upon a screen so partially sighted persons with some residual vision can read and write normal size print. These devices are in use around the world in homes, schools, industries and libraries,…

The article orients the reader to numerous aspects of low vision aids, including types of aids, function of aids, training sequence and considerations, a non-technical description of visual acuity, and favorable prognostic factors in using low vision aids. A brief annotated resource list is included. (Author)

The authors describe the function of a low vision clinic and report on an evaluation of one clinic's services. (Author)

This article presents a practical guide to help professionals develop techniques and materials that motivate preschool-age children to learn to use low vision devices. Skills for optical-device training and sample training activities for monocular and magnifier use are outlined. (Author/DB)

A visually impaired rehabilitation teacher describes a model developed in Maine for providing low vision services, with emphasis on teaching the use of near-point aids to assist on near-point tasks. The article addresses preevaluation services, assessment of clients with low vision, and follow-up when the client begins using the aids at home. (DB)

This study of the effects of lenses of different colors on the visual abilities and comfort of 20 patients with retinal disease found that, in home trials, the critical issue was density more than color. Office tests of visual acuity and contrast sensitivity with colored lenses did not predict subjective benefit. (Author/JDD)

This paper presents a summary of presentations and discussion from a World Health Organization meeting of experienced low vision practitioners. It outlines the magnitude of the problem; current status of low vision care; enhancement of the use of vision; and recommendations in definitions, identification, assessment, low vision centers, education,…

The fourth in a series of Rand reports on information transfer problems of the partially sighted reviews earlier reports and describes an experimental secretarial closed circuit TV (CCTV) system which enables the partially sighted to type from a printed or handwritten manuscript. Discussed are experiments using a pseudocolor system to determine…

This article illustrates use of the alternating treatment design to assess effectiveness of individualized interventions in low vision rehabilitation. The design was used to determine whether enlarging copy (to one of two magnification levels) and adding contrast would be effective in reducing the time a visually impaired student required to read…

This article reports on information provided by 109 teachers regarding the use of large type and optical devices, discussing teachers' confidence in instructing students to use optical devices, the criteria used to choose reading modes for individual children, and other issues. Cost factors and availability of large-type materials are also…

A comprehensive program of instruction in the use of low vision is proposed, including definitions, a philosophy of low vision, theoretical constructs, a flow chart of professional and individual relationships and responsibilities, goals, curriculum, and an evaluation system. (Author/JDD)