Subjective Visual Function of Seaman

• KAWAMOTO Ken-ichiro

  川崎医療福祉大学医療技術学部

• FUCHI Masaki

  神戸大学海事科学研究科

• HIRONO Kohei

  神戸大学海事科学研究科

• TABUCHI Akio

  川崎医療福祉大学医療技術学部

Bibliographic Information

Other Title

• 船舶業務従事者の自覚的な視機能
• センパク ギョウム ジュウジシャ ノ ジカクテキ ナ シ キノウ

Abstract

The average age of seaman such as a captain, navigation officer or pilot, is getting higher in Japan. Generally, aging affects our physical function, and it is considered that visual function is also affected by aging. Visual function is the most important factor for watchkeeping at sea, the visual function of seaman, however, is not checked regularly and periodically. We collected ninety-seven data of subjective visual function of seamen by questionnaire to investigate the situation of vision. The results showed that most seamen have some visual function problems, which are predicted by ophthalmological or basic vision study. The averaged number of subjective symptoms was higher in the group of 40s or higher than the group of 20s and 30s, especially, pesbyopia (farsightedness due to aging), visual form perception, contrast sensitivity, and color perception were affected by aging.

Journal

• The Journal of Japan Institute of Navigation

  The Journal of Japan Institute of Navigation 126 (0), 213-219, 2012

  Japan Institute of Navigation

Keywords

• ergonomics
• human factors
• aging
• visual function
• vision aid
• seaman

Details

• CRID: 1390282680458937856
• NII Article ID: 110009419141
• NII Book ID: AN00188841
• DOI: 10.9749/jin.126.213
• ISSN: 21873275
• ISSN: 03887405
• NDL BIB ID: 023566678
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023566678
• Web Site: https://www.jstage.jst.go.jp/article/jin/126/0/126_KJ00007943360/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed