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

H. A. Greene, J. Pekar, R. Brilliant, P. B. Freeman, H. T. Lewis, R. Siwoff, C. Paton, D. J. Madden, R. Westlund

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


An NIH-sponsored user and prescriber preference trial was conducted comparing a new low vision telescope system, the Ocutech Vision Enhancing System (VES) to two conventional Keplarian spectacle telescope systems in a controlled cross-over clinical study performed at four independent low vision clinics. Fifty-five visually impaired individuals, 18-81 years of age, with both previous and no telescope experience, were followed for 8-16 weeks. The experimental and control devices were compared on a series of subject-selected visual tasks using a standardized clinical protocol. Subjects were trained in the use of the systems with standardized clinical methods. The data shows a statistically significant preference of the new design by both patient and clinician with the overriding factors relating to appearance, weight, adjustability and the fit of the frame.

Original languageEnglish (US)
Pages (from-to)19-26
Number of pages8
JournalJournal of the American Optometric Association
Issue number1
StatePublished - Jan 1991
Externally publishedYes

ASJC Scopus subject areas

  • General Health Professions


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