Posture-induced changes in intraocular pressure after ab externo XEN45 gel-stent implantation in patients with primary open-angle glaucoma

Abstract Background To investigate posture-induced changes in intraocular pressure (IOP) after ab externo XEN45 Gel-Stent implantation in patients with medically uncontrolled primary open-angle glaucoma (POAG). Methods This prospective study included thirty-two eyes with POAG that underwent XEN45 Ge...

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Main Authors: Hyung Nam Jin, Jeong Woo Nam, Haowei Zhang, Mi Sun Sung, Sang Woo Park
Format: Article
Language:English
Published: BMC 2022-12-01
Series:BMC Ophthalmology
Subjects:
Online Access:https://doi.org/10.1186/s12886-022-02760-w
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author Hyung Nam Jin
Jeong Woo Nam
Haowei Zhang
Mi Sun Sung
Sang Woo Park
author_facet Hyung Nam Jin
Jeong Woo Nam
Haowei Zhang
Mi Sun Sung
Sang Woo Park
author_sort Hyung Nam Jin
collection DOAJ
description Abstract Background To investigate posture-induced changes in intraocular pressure (IOP) after ab externo XEN45 Gel-Stent implantation in patients with medically uncontrolled primary open-angle glaucoma (POAG). Methods This prospective study included thirty-two eyes with POAG that underwent XEN45 Gel-Stent implantation as a standalone procedure using an ab externo approach at Chonnam National University Hospital. IOP was measured sequentially in the sitting position, supine position, and lateral decubitus position (LDP) before and at 1, 2, 3, and 6 months after surgery using an iCare IC200 rebound tonometer. In the LDP, the eye with XEN45 Gel-Stent implantation was in the dependent position. Results IOP at each position was significantly reduced after XEN45 Gel-Stent implantation. Posture-induced changes in IOP were maintained during the follow-up. The range of postural IOP changes was reduced at 1 month; however, no significant change was observed after that point compared with baseline levels. Conclusions A XEN45 Gel-Stent inserted using the ab externo approach can reduce IOP in various body positions, but seems to have limited effects on posture-induced changes in IOP in patients with POAG.
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spelling doaj.art-9d7b39f6bcd04edc9b6395b630ebb85e2023-01-01T12:15:29ZengBMCBMC Ophthalmology1471-24152022-12-0122111010.1186/s12886-022-02760-wPosture-induced changes in intraocular pressure after ab externo XEN45 gel-stent implantation in patients with primary open-angle glaucomaHyung Nam Jin0Jeong Woo Nam1Haowei Zhang2Mi Sun Sung3Sang Woo Park4Department of Ophthalmology, Chonnam National University Medical School and HospitalDepartment of Ophthalmology, Chonnam National University Medical School and HospitalDepartment of Ophthalmology, Chonnam National University Medical School and HospitalDepartment of Ophthalmology, Chonnam National University Medical School and HospitalDepartment of Ophthalmology, Chonnam National University Medical School and HospitalAbstract Background To investigate posture-induced changes in intraocular pressure (IOP) after ab externo XEN45 Gel-Stent implantation in patients with medically uncontrolled primary open-angle glaucoma (POAG). Methods This prospective study included thirty-two eyes with POAG that underwent XEN45 Gel-Stent implantation as a standalone procedure using an ab externo approach at Chonnam National University Hospital. IOP was measured sequentially in the sitting position, supine position, and lateral decubitus position (LDP) before and at 1, 2, 3, and 6 months after surgery using an iCare IC200 rebound tonometer. In the LDP, the eye with XEN45 Gel-Stent implantation was in the dependent position. Results IOP at each position was significantly reduced after XEN45 Gel-Stent implantation. Posture-induced changes in IOP were maintained during the follow-up. The range of postural IOP changes was reduced at 1 month; however, no significant change was observed after that point compared with baseline levels. Conclusions A XEN45 Gel-Stent inserted using the ab externo approach can reduce IOP in various body positions, but seems to have limited effects on posture-induced changes in IOP in patients with POAG.https://doi.org/10.1186/s12886-022-02760-wXEN45 gel-stentAb externoPosture-induced changes in IOPRebound tonometry
spellingShingle Hyung Nam Jin
Jeong Woo Nam
Haowei Zhang
Mi Sun Sung
Sang Woo Park
Posture-induced changes in intraocular pressure after ab externo XEN45 gel-stent implantation in patients with primary open-angle glaucoma
BMC Ophthalmology
XEN45 gel-stent
Ab externo
Posture-induced changes in IOP
Rebound tonometry
title Posture-induced changes in intraocular pressure after ab externo XEN45 gel-stent implantation in patients with primary open-angle glaucoma
title_full Posture-induced changes in intraocular pressure after ab externo XEN45 gel-stent implantation in patients with primary open-angle glaucoma
title_fullStr Posture-induced changes in intraocular pressure after ab externo XEN45 gel-stent implantation in patients with primary open-angle glaucoma
title_full_unstemmed Posture-induced changes in intraocular pressure after ab externo XEN45 gel-stent implantation in patients with primary open-angle glaucoma
title_short Posture-induced changes in intraocular pressure after ab externo XEN45 gel-stent implantation in patients with primary open-angle glaucoma
title_sort posture induced changes in intraocular pressure after ab externo xen45 gel stent implantation in patients with primary open angle glaucoma
topic XEN45 gel-stent
Ab externo
Posture-induced changes in IOP
Rebound tonometry
url https://doi.org/10.1186/s12886-022-02760-w
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