Distribuição dos intervalos do piscar espontâneo em medidas repetidas com e sem anestesia tópica ocular

Translated title of the contribution: Distribution of spontaneous inter-blink interval in repeated measurements with and without topical ocular anesthesia

Felipe Placeres Borges, Denny Marcos Garcia, Antonio Augusto Velasco Cruz

Research output: Contribution to journalArticle

Abstract

Purpose: To determine if the distribution of inter-blink time intervals is constant with repeated measurements with and without topical ocular anesthesia. Methods: Inter-blink time was measured in 15 normal subjects ranging from 19 to 32 years (mean ± SD= 23.9 ± 3.20) with the magnetic search coil technique on 3 different occasions, the last one with topical ocular anesthesia. Results: One-way analysis of variance for repeated measurements showed that topical anesthesia significantly reduced the blink rate (blinks per minute), which was constant in the first two measurements (F=8.27, p=0.0015. First measurement: mean ± SD= 13.7 ± 7.8; second measurement: 13.1 ± 8.5 SD; with topical anesthesia: = 7.2 ± 4.6). However, distributions shape was not affected when the blink rate was reduced. The three distributions followed a Log Normal pattern, which means that the time interval between blinks was symmetrical when the time logarithm was considered. Conclusions: Topical ocular anesthesia reduces the rate of spontaneous blinking, but does not change the distribution of inter-blink time interval.

Original languagePortuguese
Pages (from-to)329-332
Number of pages4
JournalArquivos Brasileiros de Oftalmologia
Volume73
Issue number4
DOIs
StatePublished - Jul 2010
Externally publishedYes

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Anesthesia
Blinking
Analysis of Variance

Keywords

  • Administration, topical
  • Anesthesia
  • Blinking
  • Blinking/physiology
  • Eyelids
  • Ophthalmic solutions/pharmacology

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Distribuição dos intervalos do piscar espontâneo em medidas repetidas com e sem anestesia tópica ocular. / Borges, Felipe Placeres; Garcia, Denny Marcos; Cruz, Antonio Augusto Velasco.

In: Arquivos Brasileiros de Oftalmologia, Vol. 73, No. 4, 07.2010, p. 329-332.

Research output: Contribution to journalArticle

Borges, Felipe Placeres ; Garcia, Denny Marcos ; Cruz, Antonio Augusto Velasco. / Distribuição dos intervalos do piscar espontâneo em medidas repetidas com e sem anestesia tópica ocular. In: Arquivos Brasileiros de Oftalmologia. 2010 ; Vol. 73, No. 4. pp. 329-332.
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