Publication: Pseudophakic angle-closure from a Soemmering ring
Issued Date
2016
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Language
eng
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Mahidol University
Rights Holder(s)
BioMed Central
Bibliographic Citation
BMC Ophthalmology. Vol. 16, (2016), 91
Suggested Citation
Yanin Suwan, Bayasgalan Purevdorj, Chaiwat Teekhasaenee, Wasu Supakontanasan, Pornchai Simaroj Pseudophakic angle-closure from a Soemmering ring. BMC Ophthalmology. Vol. 16, (2016), 91. doi:10.1186/s12886-016-0257-6 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/2718
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Title
Pseudophakic angle-closure from a Soemmering ring
Abstract
Background: Report of three patients with pseudophakic angle-closure from a Soemmering ring. Three
mechanisms of the Soemmering ring induced pseudophakic angle-closure in three patients were demonstrated by
meticulous anterior segment examination and ultrasound biomicroscopic (UBM) analysis.
Case presentation: In the first case, the Soemmering-capsule-IOL complex caused relative pupillary block similar to
a phakic eye and was successfully treated with laser iridotomy alone. In the second case, an enlarged Soemmering
ring provided posterior iris support in apposition to the anterior chamber angle. We performed a laser capsulotomy
through the iridotomised hole. The last, a protruding Soemmering content causing absolute pupillary block
became resolved after laser iridotomy and total Soemmering ring content removal.
Conclusion: Angle-closure in pseudophakic eyes is uncommon. Several causes have been reported in the literatures
including Soemmering ring. This is the first report on three different mechanisms of Soemmering ring related
angle-closure in pseudophakic eyes. Ultrasound biomicroscopic analysis plays a crucial role as a diagnostic tool.