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BACKGROUND: This study evaluated the anterior ocular segment in a pseudophakic eye with angle closure due to a plateau-like iris associated with Soemmering's ring, using ultrasound biomicroscopy (UBM) and anterior segment optical coherence tomography (AS-OCT). CASE PRESENTATION: A 60-year-old woman was referred from a local clinic due to sudden-onset ocular pain and uncontrolled intraocular pressure (IOP) in the left eye, which was 56Â mmHg after treatment with latanoprost, timolol, and dorzolamide eye drops. Fourteen years earlier, she developed acute primary angle closure. At that time, because the IOP remained elevated after a peripheral iridectomy, cataract extraction combined with goniosynechialysis was added. After the IOP decreased to within the normal range, a secondary intraocular lens was implanted outside the bag. On this admission, UBM and AS-OCT images showed angle closure caused by the combination of a plateau-like iris and contact between the mydriatic pupillary margin and enlarged Soemmering's ring. After adding 2Â % pilocarpine four times a day, the mydriasis resolved slightly, and the IOP decreased to the normal range between 8 and 18Â mmHg. AS-OCT images showed re-opening of the angle structure after treatment with 2Â % pilocarpine. CONCLUSION: The intraocular pressure and angle structure in eyes with a plateau iris after cataract extraction should be followed carefully.
Department of Ophthalmology, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto, Japan.
Full article9.3.3 Plateau iris syndrome (Part of: 9 Clinical forms of glaucomas > 9.3 Primary angle closure glaucomas)
9.4.11.2 Glaucomas in aphakia and pseudophakia (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.11 Glaucomas following intraocular surgery)
6.12 Ultrasonography and ultrasound biomicroscopy (Part of: 6 Clinical examination methods)
6.10.1 Anterior segment (Part of: 6 Clinical examination methods > 6.10 Fluorescein (ICG) angiography)