May 2008
Volume 49, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2008
Results of Scanning Peripheral Anterior Chamber Depth Analyzer and Associated Factors in a Population-Based Study in Southern Part of Japan: The Kumejima Study
Author Affiliations & Notes
  • H. Sakai
    Ophthalmology, Univ of the Ryukyus, Okinawa, Japan
  • K. Kashiwagi
    Ophthalmology, Yamanashi University, Yamanashi, Japan
  • Y. Nakamura
    Ophthalmology, Univ of the Ryukyus, Okinawa, Japan
  • Y. Arakaki
    Ophthalmology, Univ of the Ryukyus, Okinawa, Japan
  • S. Sawaguchi
    Ophthalmology, Univ of the Ryukyus, Okinawa, Japan
  • A. Iwase
    Ophthalmology, Tajimi Municipal Hospital, Gifu, Japan
  • A. Tomidokoro
    Ophthalmology, Tokyo University, Tokyo, Japan
  • M. Araie
    Ophthalmology, Tokyo University, Tokyo, Japan
  • Footnotes
    Commercial Relationships  H. Sakai, None; K. Kashiwagi, Takagi Seiko, P; Y. Nakamura, None; Y. Arakaki, None; S. Sawaguchi, None; A. Iwase, None; A. Tomidokoro, None; M. Araie, None.
  • Footnotes
    Support  Grants-in-Aid for Scientific Research: JSPS
Investigative Ophthalmology & Visual Science May 2008, Vol.49, 3596. doi:https://doi.org/
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      H. Sakai, K. Kashiwagi, Y. Nakamura, Y. Arakaki, S. Sawaguchi, A. Iwase, A. Tomidokoro, M. Araie; Results of Scanning Peripheral Anterior Chamber Depth Analyzer and Associated Factors in a Population-Based Study in Southern Part of Japan: The Kumejima Study. Invest. Ophthalmol. Vis. Sci. 2008;49(13):3596. doi: https://doi.org/.

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

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Abstract

Purpose: : To evaluate the distribution of peripheral anterior chamber depth (PACD) in a population in a southern island of Japan and to analyze the relationship between PACD and other factors.

Methods: : 3762 persons participated (participation ratio 81.2%) from 40 years or older population of Kumejima Town. Reliable PACD measurements were obtained using scanning peripheral anterior chamber depth analyzer (SPAC) from 3,158 participants.

Results: : PACD was graded 1 to 12 automatically depend on the measurement value. The PACD grade averaged 7.5 +/- 2.2 (mean +/- standard deviation), and smaller in women (7.1 +/- 2.1) than men (7.9 +/- 2.1)(P<0.001). PACD grade was negatively correlated with age and refractive error, and was positively correlated with axial length, van Herick grading, and central anterior chamber depth (P<0.001). 295 subjects (9.3%) were diagnosed as possible angle closure and additional 379 (12.0%) were high risk of angle closure (S) by an automated diagnosis software builted in the SPAC.

Conclusions: : PACD grade obtained using SPAC in population in a southern island of Japan was significantly negatively correlated with age and refractive error, and was significantly positively correlated with axial length, van Herick grading, and central anterior chamber depth. A total of 21.3% of the population aged 40 years or older were found to be angle closure and its suspect by the SPAC analysis.

Keywords: clinical (human) or epidemiologic studies: risk factor assessment • imaging/image analysis: clinical • anterior chamber 
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