Visual discrimination testing of ultraviolet transmitting and ultraviolet blocking acrylic thermoplastics.

Full Abstract

BACKGROUND:
Visual perception has hindered the development of blinded, placebo-controlled ultraviolet light exposure conditions in humans. New acrylic thermoplastics that block or transmit ultraviolet light have visual properties that may provide a solution.

METHODS:
In a series of triangle taste tests, 60 subjects were tested for the ability to visually perceive ultraviolet light transmission by two of four types of acrylic thermoplastics.

RESULTS:
Forty-six of sixty (67%) subjects were unable to visually detect ultraviolet light transmitting acrylics among ultraviolet blocking acrylics in both an ambient light background condition and an ambient light background condition with ultraviolet A light supplementation.

CONCLUSION:
Acrylic thermoplastics allow for the production of blinded, placebo-controlled ultraviolet light exposure conditions by eliminating visual discrimination differences between active and control groups.

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Author information

Author/s: Kucenic, Michael J (MJ); Patel, Manisha (M); Feldman, Steven R (SR); Liguori, Anthony (A); Fleischer, Alan B (AB);

Affiliation: The Department of Dermatology, Baptist Medical Center, Wake Forest University School of Medicine, Winston-Salem, NC 27157-1071, USA. mkucenic(-atsign-)wubmc.edu

Journal and publication information

Publication Type: Comparative Study; Journal Article

Journal: Photodermatology, photoimmunology & photomedicine (Photodermatol Photoimmunol Photomed), published in Denmark. (Language: eng)

Reference: 2002-Oct; vol 18 (issue 5) : pp 228-31

Dates: Created 2002/10/25; Completed 2003/04/30; Revised 2006/11/15;

PMID: 12390663, status: MEDLINE (last retrieval date: 11/6/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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Associated Chemicals: Acrylic Resins (0)

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