Influence of pupillary diameter, ciliary muscle tone, and ambient light on nerve fiber layer measurements with scanning laser polarimetry

Influence of pupillary diameter, ciliary muscle tone, and ambient light on nerve fiber layer measurements with scanning laser polarimetry

Autor Paranhos Junior, Augusto Autor UNIFESP Google Scholar
Silvestre, Ana Maria Autor UNIFESP Google Scholar
Passerotti, Carlo C. Autor UNIFESP Google Scholar
Martins, Elizabeth M. R. Autor UNIFESP Google Scholar
Mello, Paulo Augusto de Arruda Autor UNIFESP Google Scholar
Prata Junior, João Antonio Autor UNIFESP Google Scholar
Shields, M. B Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Yale Univ
Resumo Purpose: To evaluate the influence of the pupillary diameter, ciliary muscle tone, and room light on nerve fiber layer measurements with the scanning laser polarimeter (GDx).Methods: One randomly selected eye of ten normal volunteers was examined with the GDx in a two-day protocol under eight testing conditions (pilocarpine 1%, phenylephrine 10%, tropicamide 1%, or no drops with room lights on or off). the twelve parameters, obtained by the GDx, were compared under the eight testing conditions, using two way ANOVA for repeated measurements and Tukey HSD post hoc test.Results: Ten of the twelve parameters were statistically significantly different (P < 0.05) when measured under the three medication or no medication conditions, controlling for the ambient light status. There were no significant differences when measured with the light on or off, controlling for use of drops.Conclusions: Nerve fiber layer measurements with the GDx were influenced by drugs affecting pupillary diameter, but not by the status of room light or ciliary muscle tone.
Palavra-chave GDx
glaucoma
papillary diameter
polarimetry
Idioma Inglês
Data de publicação 2005-04-01
Publicado em Journal of Glaucoma. Philadelphia: Lippincott Williams & Wilkins, v. 14, n. 2, p. 124-127, 2005.
ISSN 1057-0829 (Sherpa/Romeo, fator de impacto)
Publicador Lippincott Williams & Wilkins
Extensão 124-127
Fonte http://dx.doi.org/10.1097/01.ijg.0000153406.03805.e3
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000227730900007
Endereço permanente http://repositorio.unifesp.br/handle/11600/28201

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