April 2009
Volume 50, Issue 13
Free
ARVO Annual Meeting Abstract  |   April 2009
Comparison of Uveal Effusion in Primary Angle Closure Eyes Diagnosed by Anterior Segment Optical Coherence Tomography and Ultrasound Biomicroscope
Author Affiliations & Notes
  • E. Tomoyose
    Ophthalmology, University of Ryukyus, Nishihara-cho, Japan
  • R. S. Kumar
    Ophthalmology, Singapore national eye center, Singapore, Singapore
  • I. Henzan
    Ophthalmology, University of Ryukyus, Nishihara-cho, Japan
  • S. Sawaguchi
    Ophthalmology, University of Ryukyus, Nishihara-cho, Japan
  • T. Aung
    Ophthalmology, Singapore national eye center, Singapore, Singapore
  • H. Sakai
    Ophthalmology, University of Ryukyus, Nishihara-cho, Japan
  • Footnotes
    Commercial Relationships  E. Tomoyose, None; R.S. Kumar, None; I. Henzan, None; S. Sawaguchi, None; T. Aung, None; H. Sakai, None.
  • Footnotes
    Support  Ministry of Education,Culture,Science and Technology-Japan 17591845 and Fund from the National Society for the prevention of Blindness Tokyo
Investigative Ophthalmology & Visual Science April 2009, Vol.50, 2462. doi:
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      E. Tomoyose, R. S. Kumar, I. Henzan, S. Sawaguchi, T. Aung, H. Sakai; Comparison of Uveal Effusion in Primary Angle Closure Eyes Diagnosed by Anterior Segment Optical Coherence Tomography and Ultrasound Biomicroscope. Invest. Ophthalmol. Vis. Sci. 2009;50(13):2462.

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

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Abstract

Purpose: : To evaluate the imaging ability for sub-clinical uveal effusion in primary angle closure eyes by anterior segment OCT (AS-OCT) and to compare it with ultrasound biomicroscope (UBM).

Methods: : 23 consecutive eyes with acute or chronic primary angle closure (PAC), PAC suspect (PACS), or with glaucoma (PACG) and demonstrating uveal effusion on AS-OCT or UBM were summarized. The images were evaluated and graded by masked observers. Uveal effusion was diagnosed when the suprachoroidal space was visualized as a separation between the sclera and pars plana of the ciliary body. Uveal effusion was graded as 0 (none), 1 (slit), 2 (band), and 3 (severe) as previously reported.

Results: : In 4 eyes of 4 patients with acute PAC, 3 eyes had grade 2 and 1 eye had grade 1 uveal effusion. All 4 eyes had effusion circumferentially and were identified by both UBM and AS-OCT. Grade 1 uveal effusion was diagnosed by AS-OCT in 19 chronic PAC eyes, and 14 eyes out of these 19 eyes showed effusion on UBM; none of the effusions were seen on UBM alone. Using AS-OCT, effusion was evident in 4 quadrants (3 eyes), 3 quadrants (7 eyes), 2 quadrants (5 eyes), and 1 quadrant (4 eyes). UBM showed effusion in 3 quadrants (5 eyes), 2 quadrants (2 eyes) and 1quadrant (7 eyes). Using UBM none of the eyes demonstrated effusion in all 4 quadrants and effusion was not found in 5 eyes (P=0.015, chi-square test, William's correction).

Conclusions: : AS-OCT seems to have greater ability compared to UBM to demonstrate sub-clinical uveal effusion, such as that present in eyes with chronic PAC.

Keywords: anterior chamber • imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) • uvea 
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