Document Detail

Users' and nonusers' evaluations of the CPF 550 lenses.
MedLine Citation:
PMID:  6517129     Owner:  NLM     Status:  MEDLINE    
Thirty-six subjects completed questionnaires on their experiences wearing the CPF 550 lenses. Twenty-six subjects [21 with retinitis pigmentosa (RP)] were users of the 550's and 10 subjects (6 with RP) were nonusers who had rejected the 550's after a trial period. Subjects were asked about such factors as effects on adaptation time, ocular comfort, visual functioning, acceptability of tint strength in various lighting conditions, cosmetic appearance, effects of weather, and replacement intent. Users reported reduced adaptation time in changes of illumination, increased ocular comfort, improved visual functioning with the exception of poor color discrimination, and cosmetic acceptability. Satisfaction with tint strength varied with degree of illumination; usefulness in different types of weather also varied depending on the condition. Nonusers' responses were mixed; they were less likely to report improvements with the CPF 550 lenses compared to the users' group.
D L Morrissette; E B Mehr; C W Keswick; P N Lee
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of optometry and physiological optics     Volume:  61     ISSN:  0093-7002     ISO Abbreviation:  Am J Optom Physiol Opt     Publication Date:  1984 Nov 
Date Detail:
Created Date:  1985-02-07     Completed Date:  1985-02-07     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0417614     Medline TA:  Am J Optom Physiol Opt     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  704-10     Citation Subset:  IM    
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MeSH Terms
Color Perception
Discrimination (Psychology)
Evaluation Studies as Topic
Eyeglasses / standards*
Light / adverse effects*
Middle Aged
Retinal Degeneration / prevention & control*
Retinitis Pigmentosa / complications*,  physiopathology
Vision Disorders / complications,  physiopathology
Vision, Ocular / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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