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Acute angle closure caused by capsular tension ring and intraocular lens Mayumi Yokomizo 1 , Norimitsu Ban 1 , Atsuro Uchida 1 , Syunpei Fujioka 1 , Toshihide Kurihara 1 , Hajime Shinoda 1 , Kazuno Negishi 1 1Department of Ophthalmology, Keio University School of Medicine pp.485-490
Published Date 2023/4/15
DOI https://doi.org/10.11477/mf.1410214767
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Abstract Background:There are few reports of angular closure as a complication of capsular tension ring(CTR)implantation. Here we experienced two cases of acute angular closure caused by a dislocated CTR-intraocular lens(IOL)complex(CTR-IOL).

Case 1:The patient was a 58-year-old man. Six months earlier, he had undergone a cataract surgery with implantation of a CTR in another hospital. Owing to the decreased visual acuity and high intraocular pressure(IOP)in his right eye, the man was referred to our hospital. At the time of the visit, his best corrected visual acuity was 0.03 in the right eye, and his right IOP was 46.3 mmHg. IOL dislocation and all-circumferential angular closure were recognized. We performed CTR-IOL removal and IOL intrascleral fixation surgery. The visual acuity and IOP improved after the surgery.

Case 2:The patient was a 72-year-old woman. Three years before, she had undergone a cataract surgery with implantation of a CTR in another hospital. In December, she observed a decrease in the right eye visual acuity, and she came to our hospital. At the time of the visit, her right visual acuity was 0.4 without correction, and her right IOP was 66 mmHg. A downward shift of IOL and associated upward angle closure were observed. Initially, she was treated with IOP lowering eye drops and atropine eye drops, but the IOP continued to be high. Therefore, we performed CTR-IOL removal and IOL intrascleral fixation surgery. The visual acuity and IOP improved after the surgery.

Conclusion:The above cases imply that CTR implantation may cause secondary angle closure. In these situations, CTR-IOL removal and IOL intrascleral fixation surgery could be effective.


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