Plateau iris configuration secondary to iridociliary polycystosis

Ahmed ALAMI1*, Mohamed KRIET2, Karim REDA3, Abdelkader LAKTAOUI4, Abdelbaare OUBAAZ5.
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Introduction:The plateau iris is an abnormal configuration of the iris and ciliary body. Ultrasound
biomicroscopy (UBM) is a valuable aid for its diagnosis as well as for the determination of its
primary or secondary character. We report the case of a plateau iris configuration secondary to
iridociliary polycystosis.Case report:A 34 year-old male patient, with no family hystory of
glaucoma, was seen in emergency for an angle closure glaucoma crisis (ACG) of the left eye. The
dynamic gonioscopy of the adelphe eye showed a double bump appearance typical of the plateau
iris configuration. A UBM examination was then performed and confirmed the diagnosis of plateau
iris configuration secondary to bilateral iridociliary polycystosis. After control of the acute attack,
the patient received a peripheral iridotomy for both eyes and his ocular tone was well balanced
under monotherapy.Discussions:Primary iridociliary polycystic is one of the etiologies responsible
for secondary plateau iris. The UBM is a valuable diagnostic aid because it gives a better analysis
of the ciliary body and the structures behind the iris.Conclusion:Irido-ciliary polycystic disease
may be responsible for acute ocular hypertonia by closing the angle. The UBM constitutes a major
examination to confirm this diagnosis. Control of intraocular pressure can be achieved by
monotherapy and YAG laser PI, avoiding areas with irido-ciliary cysts.
Keywords: Angle-closure glaucoma (ACG); Secondary iris plateau; UBM; Irido-ciliary polycysts;
YAG laser Peripheral Iridotomy (PI).