[Objective evaluation of visual fatigue for reading of radiographs displayed on medical-grade liquid-crystal displays].

Keita Takahashi, Junji Morishita, Hiroyuki Tashiro, Yasuhiko Nakamura

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The aim of this study was to evaluate visual fatigue objectively by measuring accommodation time and critical fusion frequency (CFF) before and after reading posteroanterior chest radiographs displayed on medical-grade liquid-crystal displays (LCDs) under different monitor conditions. A color LCD (500, 170 cd/m2) and a monochrome LCD (500 cd/m2) were used in this study. Six observers independently kept reading the radiographs for two hours to understand various lung nodules in the "Fatigue Session". Objective visual fatigue was measured by using the accommodation device and the CFF meter before and after the Fatigue Session. The ambient lighting of the laboratory was set at 35 lux. Both the accommodation time and the CFF between before and after the Fatigue Session indicated statistically significant differences (p<0.05). Our results on accommodation time and CFF before and after reading the radiographs on medical-grade LCDs indicated that visual fatigue could be evaluated objectively.

Original languageEnglish
Pages (from-to)1416-1422
Number of pages7
JournalNippon Hoshasen Gijutsu Gakkai zasshi
Volume66
Issue number11
DOIs
Publication statusPublished - Nov 20 2010

All Science Journal Classification (ASJC) codes

  • Medicine(all)

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