June 2013
Volume 54, Issue 15
Free
ARVO Annual Meeting Abstract  |   June 2013
Plateau Iris among American Caucasians, American Chinese, and Mainland Chinese
Author Affiliations & Notes
  • YINGJIE LI
    Ophthalmology, University of California San Francisco, San Francisco, CA
    Ophthalmology, The Third Affiliated Hospital of Nanchang University, Nanchang, China
  • Ye Elaine Wang
    Ophthalmology, University of California San Francisco, San Francisco, CA
    Duke University School of Medicine, Durham, NC
  • Mary Qiu
    Ophthalmology, University of California San Francisco, San Francisco, CA
  • Dandan Wang
    Ophthalmology, University of California San Francisco, San Francisco, CA
    Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
  • Mingguang He
    Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
  • Shan Lin
    Ophthalmology, University of California San Francisco, San Francisco, CA
  • Footnotes
    Commercial Relationships YINGJIE LI, None; Ye Elaine Wang, None; Mary Qiu, None; Dandan Wang, None; Mingguang He, None; Shan Lin, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2013, Vol.54, 1874. doi:
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    • Get Citation

      YINGJIE LI, Ye Elaine Wang, Mary Qiu, Dandan Wang, Mingguang He, Shan Lin; Plateau Iris among American Caucasians, American Chinese, and Mainland Chinese. Invest. Ophthalmol. Vis. Sci. 2013;54(15):1874.

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

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Abstract

Purpose: To evaluate the prevalence and common risk factors of plateau iris configuration among American Caucasians, American Chinese, and mainland Chinese subjects using ultrasound biomicroscopy.

Methods: This study included three gender- and age-matched cohorts of 117 American Caucasians, 129 American Chinese and 112 mainland Chinese subjects. One eye was examined per subjects. Eyes with plateau iris configuration were defined as having at least 2 quadrants with the presence of 1) anteriorly directed ciliary body, 2) absent ciliary sulcus, and 3) central flat iris plane. All subjects underwent A-scan biometry and auto-refraction.

Results: Plateau iris configuration was found in 28 (23.9%) American Caucasians, 29 (22.5%) American Chinese, and 23 (20.5%) mainland Chinese subjects. No significant difference in the prevalence of plateau iris configuration was observed among the three cohorts (P=0.825, χ2 test). Spherical equivalent was significantly associated with plateau iris configuration (coefficient 0.233, Hierarchical Cluster Analysis).

Conclusions: The prevalence of plateau iris did not differ among American Caucasians, American Chinese and mainland Chinese subjects. There is a lower rate of plateau iris among myopic eyes compared to emmetropic eyes.

Keywords: 571 iris • 605 myopia  
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