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The Ocutech Vision Enhancing System (VES): utilization and preference study.

H A Greene, J Pekar, R Brilliant

Journal of the American Optometric Association

|January 1, 1991

Summary

A new low vision telescope system, the Ocutech Vision Enhancing System (VES), was preferred by patients and clinicians over conventional systems. Key factors included appearance, weight, adjustability, and frame fit.

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Area of Science:

Ophthalmology
Low Vision Rehabilitation
Biomedical Engineering

Background:

Low vision affects millions, necessitating assistive devices.
Conventional spectacle telescopes are available but can have drawbacks.

Purpose of the Study:

To compare the Ocutech Vision Enhancing System (VES) with conventional Keplerian spectacle telescopes.
To evaluate user and prescriber preferences for a new low vision telescope design.

Main Methods:

A controlled cross-over clinical study involving 55 visually impaired individuals.
Comparison of the VES and two conventional systems using standardized visual tasks.
Training provided using standardized clinical methods.

Main Results:

Statistically significant preference for the new VES design by both patients and clinicians.
Overriding preference factors included improved appearance, reduced weight, better adjustability, and frame fit.
Study included participants with and without prior telescope experience.

Conclusions:

The Ocutech VES demonstrates a preferred alternative to conventional low vision telescopes.
Design elements such as aesthetics, weight, and fit are critical for user acceptance.
Further adoption of the VES may be facilitated by its favorable user-reported characteristics.