December 2002
Volume 43, Issue 13
Free
ARVO Annual Meeting Abstract  |   December 2002
Iridociliary Apposition in Plateau Iris Syndrome Persists After Cataract Extraction
Author Affiliations & Notes
  • R Ritch
    New York Eye & Ear Infirmary New York NY and New York Medical College Valhalla NY
  • HV Tran
    New York Eye & Ear Infirmary New York NY and New York Medical College Valhalla NY
  • H Ishikawa
    New York Eye & Ear Infirmary New York NY and New York Medical College Valhalla NY
  • J Liebmann
    New York Eye & Ear Infirmary New York NY and New York Medical College Valhalla NY
  • Footnotes
    Commercial Relationships   R. Ritch, None; H.V. Tran, None; H. Ishikawa, None; J. Liebmann, None. Grant Identification: Support: NY Glaucoma Research Institute and NY Eye and Ear Infirmary, NY, NY.
Investigative Ophthalmology & Visual Science December 2002, Vol.43, 290. doi:
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    • Get Citation

      R Ritch, HV Tran, H Ishikawa, J Liebmann; Iridociliary Apposition in Plateau Iris Syndrome Persists After Cataract Extraction . Invest. Ophthalmol. Vis. Sci. 2002;43(13):290.

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

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Abstract

Abstract: : Purpose: To quantify ultrasound biomicroscopic morphologic changes of the anterior chamber angle before and after cataract extraction in eyes with plateau iris syndrome and to determine the effect of postoperative zonular relaxation on ciliary body position. Methods: Eyes with plateau iris syndrome scanned before and after cataract extraction between January 1994 and September 2001 were enrolled. Changes in anterior chamber depth (ACD), angle recess area (ARA), angle opening distance at 500µm (AOD), and the iridociliary relationship were assessed. Results: Five eyes of 5 patients were enrolled. Mean age was 76.0 ± 5.2 (SD) years (range, 69 to 81). Mean refractive error was +3.5 ± 1.4 diopters (range, +1.75 to +5.1). Iridociliary contact was present before and after cataract extraction in all eyes. ACD (p<0.001 paired t-Test), AOD (p<0.02), and ARA (p=0.08) increased after surgery. Conclusion: Although the anterior chamber deepens after cataract extraction in plateau iris syndrome, iridociliary apposition persists. Postoperative changes in the anterior segment in these eyes suggests that narrowing of the angle in plateau iris configuration in older individuals involves the ciliary body-zonule-lens capsule relationship, rather than just an abnormality of ciliary body position alone.

Keywords: 430 imaging/image analysis: clinical • 318 anterior segment • 348 ciliary body 
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