March 2012
Volume 53, Issue 14
Free
ARVO Annual Meeting Abstract  |   March 2012
Comparison of Tear Meniscus Height Measured by Oculus Keratograph 4 and OCT
Author Affiliations & Notes
  • Anji wei
    Ophthalmology, EENT Hospital of Fudan University, Shanghai, China
  • Jiaxu Hong
    Ophthalmology, Eye & Ear, Nose, Throat Hospital, Shanghai, China
  • JianJiang Xu
    Ophthalmology, EYE & ENT Hospital of Fudan Univ, Shanghai, China
  • Footnotes
    Commercial Relationships  Anji wei, None; Jiaxu Hong, None; JianJiang Xu, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science March 2012, Vol.53, 4256. doi:
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      Anji wei, Jiaxu Hong, JianJiang Xu; Comparison of Tear Meniscus Height Measured by Oculus Keratograph 4 and OCT. Invest. Ophthalmol. Vis. Sci. 2012;53(14):4256.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract
 
Purpose:
 

To investigate the difference of tear meniscus (TM) measurement between oculus keratograph 4 and optical coherence tomography (OCT), and to compare their repeatability.

 
Methods:
 

16 cases (32 eyes) with dry eye (DE) and 12 controls (24 eyes) were enrolled. Dry eye questionnaire was administered to all subjects. Tear break up time (BUT), Schemer I test and fluorescein staining of ocular surface were examined. The tear meniscus height (TMH) was measured 3 times respectively by oculus and OCT. The values determined by each technique were average for each eye and then statistically analyzed.

 
Results:
 

The average TMH value in DE group measured by oculus keratograph and OCT were 0.24±0.07mm and 0.25±0.08mm, both being significantly lower compared with 0.31±0.04mm and 0.32±0.12mm in the control group (P=0.000). TMH results were statistically significant difference between DE and control group (P=0.000). TMH values were both highly correlated in DE group (r=0.856) and control group (r=0.876).

 
Conclusions:
 

The fourth generation oculus keratograph 4 is an easy, quick, noninvasive, and reliable method to take TMH images and measurement, whose values significant correlated with OCT test results.  

 
Keywords: cornea: tears/tear film/dry eye • imaging/image analysis: clinical • imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) 
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