Plateau Iris Glaucoma Differential Diagnoses

Updated: May 06, 2016
  • Author: Jim C Wang (王崇安), MD; Chief Editor: Hampton Roy, Sr, MD  more...
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Diagnostic Considerations

Pseudoplateau iris: In pseudoplateau iris, the anterior displacement of the peripheral iris is not caused by an enlarged or anteriorly positioned ciliary body. Cysts of the iris and/or ciliary body neuroepithelium most often are responsible. This condition may be distinguished from plateau iris on gonioscope because the angle is closed in only one quadrant or, if cysts are multiple, at several focal loculations. However, clinical features of pseudoplateau iris often do not discriminate well from plateau iris. Ultrasound biomicroscopy is extremely helpful in identifying the underlying mechanism and guiding therapy. [8]

Ciliary body cyst

Iris cyst

Peripheral anterior synechiae

Incomplete iridotomy

Differential Diagnoses