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Glauco-Claw: A novice implant for chronic angle-closure glaucoma.

ABSTRACT: This article describes 1-year outcomes of a new intra-ocular implant, "Glauco-Claw," in refractory chronic angle-closure glaucoma (ACG). Glauco-Claw is a novice polymethylmethacrylate implant with a central ring and five claws placed circumferentially. It was placed in the anterior chamber and the peripheral iris was tucked into the claws, thus causing goniosynechialysis and preventing the reformation of goniosynechiae. It was implanted in five eyes of five patients, and they were followed up for 1 year. Target intra-ocular pressure was achieved and maintained in all the patients till the last follow-up. Two patients did not require any anti-glaucoma medication. No significant complications were observed in any patient. Glauco-Claw could be another armamentarium in the management of refractory chronic ACG.

SUBMITTER: Singh K

PROVIDER: S-EPMC10491025 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature

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Glauco-Claw: A novice implant for chronic angle-closure glaucoma.

Singh Kiranjit K Singh Sukarma S Singh Kunwar Kiranjit KK Vashist Urvish U Kaur Harmit H Jain Neha N Mittal Vikas V

Indian journal of ophthalmology 20230701 7

This article describes 1-year outcomes of a new intra-ocular implant, "Glauco-Claw," in refractory chronic angle-closure glaucoma (ACG). Glauco-Claw is a novice polymethylmethacrylate implant with a central ring and five claws placed circumferentially. It was placed in the anterior chamber and the peripheral iris was tucked into the claws, thus causing goniosynechialysis and preventing the reformation of goniosynechiae. It was implanted in five eyes of five patients, and they were followed up fo ...[more]

PMID: 37417139

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Project description:Aim:Our goal is to review current literature regarding drug-induced acute angle-closure glaucoma (AACG) and provide ophthalmologists and general practitioners with a thorough understanding of inciting medications and treatment pitfalls to be avoided. Background:Drug-induced AACG is an ophthalmological emergency that ophthalmologists and general practitioners should be familiar with, given its potentially blinding consequences. Common anatomical risk factors for AACG include a shallow anterior chamber depth, short axial length, plateau iris configuration, thick lens, anteriorly positioned lens, and rarely, intraocular tumor. Demographic risk factors include female sex, Asian ethnicity, family history, and advanced age. In patients with predisposing factors, acute angle closure can be triggered by various classes of medications including adrenergic agonists, anticholinergics, cholinergics, sulfonamides, supplements, and serotonergic medications. Physicians prescribing such inciting medications should be aware of their potentially sight-threatening adverse effects and to inform patients of the warning symptoms. Patients typically present with elevated intraocular pressure (IOP), headache, nausea, blurry vision, and halos around lights. Review results:There are two main mechanisms of drug-induced AACG, both with different treatment strategies. The first mechanism of drug-induced AACG is pupillary block and iridocorneal angle closure secondary to thickening of iris base with mydriasis. The second mechanism of drug-induced AACG is anterior displacement of the lens-iris diaphragm due to mass effect (e.g., blood, misdirected aqueous humor, and tumors), uveal effusion, or weakened zonules. Conclusion:This paper reviews drug-induced AACG, high-risk anatomical features, underlying mechanisms, inciting medications, and options for treatment and prevention. Clinical significance:With proper understanding of the underlying mechanism of drug-induced AACG, physicians can respond promptly to save their patients' vision by employing the correct treatment strategy. How to cite this article:Yang MC, Lin KY. Drug-induced Acute Angle-closure Glaucoma: A Review. J Curr Glaucoma Pract 2019;13(3):104-109.

Dataset Information

Glauco-Claw: A novice implant for chronic angle-closure glaucoma.

Publications

Glauco-Claw: A novice implant for chronic angle-closure glaucoma.

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