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OPHTHALMIC IMAGE
Year : 2019  |  Volume : 67  |  Issue : 10  |  Page : 1727

Bilateral segmental accessory iris membrane with narrow anterior chamber angle


Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong

Date of Web Publication23-Sep-2019

Correspondence Address:
Dr. Jonathan Cheuk Hung Chan
Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Room 301, Block B, Cyberport 4
Hong Kong
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_68_19

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How to cite this article:
Choy BN, Zhu MM, Chan JC. Bilateral segmental accessory iris membrane with narrow anterior chamber angle. Indian J Ophthalmol 2019;67:1727

How to cite this URL:
Choy BN, Zhu MM, Chan JC. Bilateral segmental accessory iris membrane with narrow anterior chamber angle. Indian J Ophthalmol [serial online] 2019 [cited 2019 Oct 17];67:1727. Available from: http://www.ijo.in/text.asp?2019/67/10/1727/267458



Accessory iris membrane (AIM) is a rare anomaly characterized by hyperplasia of the superficial mesodermal layer of the iris.[1],[2],[3],[4] Unlike previously described cases with circumferential involvements, this is the first reported case of segmental AIM, with both eyes demonstrating duplicated iris tissue confined to the inferonasal part of the pupil and a shallow anterior chamber. A whitish band is present along the free margin of the membrane [Figure 1]a and [Figure 1]b, which appears non-contractile on pupil dilation with mydriatic [Fig.1c and d]. Ultrasound biomicroscopy and anterior segment optical coherence tomography both confirmed the location of the membranous structure anterior to the iris plane.
Figure 1: Anterior segment photography by slit lamp of bilateral accessory iris membrane (a and c right eye, b and d left eye)

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Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Bhatti SM, Kapoor HK. Bilateral accessory iris membrane. Indian J Ophthalmol 1998;46:110-1.  Back to cited text no. 1
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2.
Levy WJ. Congenital iris lesion. Br J Ophthalmol 1957;41:120-3.  Back to cited text no. 2
    
3.
Luxenburg MN. Hyperplasia of the anterior layer of the iris stroma. Br J Ophthalmol 1965;49:516-20.  Back to cited text no. 3
    
4.
Espandar L, Allingham RR, Afshari NA. Stromal duplication of the iris. JAMA Ophthalmol 2013;131:1442.  Back to cited text no. 4
    


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