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The differences of tear film for young Korean of a day indoor space

실내 공간 내에서 한국인 청년의 하루 중 눈물층 변화

  • 오현진 (백석문화대학교 안경광학과) ;
  • 이지영 (수성대학교 안경광학과)
  • Received : 2012.11.20
  • Accepted : 2012.12.17
  • Published : 2012.12.31

Abstract

This study is to research the differences of tear film for young people in of a day in a restricted indoor space. The subjects are 58 eyes volunteers for twice preliminary inspection and tear test of a day. 58 healthy individuals with no eye disease, no body disease, orthophoria, corrective visual acuity more than 0.8, binocular spherical equivalence difference over 0.50 diopter, the flattest corneal curvature in horizontal meridian and the steepest corneal curvature in vertical meridian were tested. The uncorrective visual acuity, refractive error, corneal curvature, schirmer test and tear break up test were performed in the morning and afternoon. Schirmer test were $16.0{\pm}7.0mm$ in the morning and $14.1{\pm}7.1mm$ in the afternoon. TBUT were $11.3{\pm}0.6$ sec in the morning and $12.1{\pm}0.9$ sec in the afternoon. They have no significant differences.

Keywords

Tear film;Schirmer test;TBUT;Water layer;Dry spot