One year clinical outcomes with a novel canaloplasty device in mild to severe open angle glaucoma

AIM: To evaluate the one-year clinical outcomes of a novel canaloplasty device used in combination with cataract extraction (CE) in patients with mild to severe open angle glaucoma (OAG). METHODS: This study reviewed patients diagnosed with mild to severe OAG, who underwent canaloplasty with the STR...

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Main Authors: Iden M. Amiri, Heran W. Gebreyesus, Nathan Grove, Jennifer L. Patnaik, Malik Y. Kahook, Leonard K. Seibold
Format: Article
Language:English
Published: Press of International Journal of Ophthalmology (IJO PRESS) 2025-09-01
Series:International Journal of Ophthalmology
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Online Access:http://ies.ijo.cn/en_publish/2025/9/20250908.pdf
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author Iden M. Amiri
Heran W. Gebreyesus
Nathan Grove
Jennifer L. Patnaik
Malik Y. Kahook
Leonard K. Seibold
author_facet Iden M. Amiri
Heran W. Gebreyesus
Nathan Grove
Jennifer L. Patnaik
Malik Y. Kahook
Leonard K. Seibold
author_sort Iden M. Amiri
collection DOAJ
description AIM: To evaluate the one-year clinical outcomes of a novel canaloplasty device used in combination with cataract extraction (CE) in patients with mild to severe open angle glaucoma (OAG). METHODS: This study reviewed patients diagnosed with mild to severe OAG, who underwent canaloplasty with the STREAMLINE® Surgical System combined with CE. The primary outcome was surgical success, defined as achieving ≥20% intraocular pressure (IOP) reduction and/or a reduction of ≥1 glaucoma medication compared to baseline. Secondary outcomes included mean IOP, average number of glaucoma medications, and best-corrected distance visual acuity (BCDVA). Data was collected preoperatively and at multiple postoperative time points up to one year. RESULTS: A total of 68 eyes of 47 patients were included with mean age was 73.1±7.0y and 60% were females. Surgical success at one year was achieved in 68.8% of eyes, with 67.6% success in mild, 80.0% in moderate, and 66.7% in severe OAG cases. IOP was significantly reduced from a baseline of 16.1±0.5 to 14.7±0.4 mm Hg at one year (P=0.0004). The number of medications decreased significantly in all eyes from a baseline of 1.2±0.1 to 0.6±0.1 at one year (P<0.0001). When stratified by glaucoma severity, only the mild group experienced a statistically significant decrease from a baseline of 1.1±0.1 to 0.4±0.1 (P<0.0001). BCDVA improved significantly from baseline to one year. No sight-threatening complications were reported. CONCLUSION: Canaloplasty using the STREAMLINE® surgical system combined with CE effectively reduces IOP at one year in mild to severe OAG with minimal complications. IOP lowering efficacy, reduction in IOP lowering medications, and safety in moderate to severe OAG require further study.
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publisher Press of International Journal of Ophthalmology (IJO PRESS)
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spelling doaj-art-43ff6dc01f3541cd87da1059350f116c2025-08-22T06:07:08ZengPress of International Journal of Ophthalmology (IJO PRESS)International Journal of Ophthalmology2222-39592227-48982025-09-011891673168010.18240/ijo.2025.09.0820250908One year clinical outcomes with a novel canaloplasty device in mild to severe open angle glaucomaIden M. Amiri0Heran W. Gebreyesus1Nathan Grove2Jennifer L. Patnaik3Malik Y. Kahook4Leonard K. Seibold5Leonard K. Seibold. Department of Ophthalmology, University of Colorado School of Medicine, 1675 Aurora Court, Aurora, CO 80045, USA. leonard.seibold@cuanschutz.eduDepartment of Ophthalmology, University of Colorado School of Medicine, Aurora, Colorado 80045, USADepartment of Ophthalmology, University of Colorado School of Medicine, Aurora, Colorado 80045, USADepartment of Ophthalmology, University of Colorado School of Medicine, Aurora, Colorado 80045, USADepartment of Ophthalmology, University of Colorado School of Medicine, Aurora, Colorado 80045, USADepartment of Ophthalmology, University of Colorado School of Medicine, Aurora, Colorado 80045, USAAIM: To evaluate the one-year clinical outcomes of a novel canaloplasty device used in combination with cataract extraction (CE) in patients with mild to severe open angle glaucoma (OAG). METHODS: This study reviewed patients diagnosed with mild to severe OAG, who underwent canaloplasty with the STREAMLINE® Surgical System combined with CE. The primary outcome was surgical success, defined as achieving ≥20% intraocular pressure (IOP) reduction and/or a reduction of ≥1 glaucoma medication compared to baseline. Secondary outcomes included mean IOP, average number of glaucoma medications, and best-corrected distance visual acuity (BCDVA). Data was collected preoperatively and at multiple postoperative time points up to one year. RESULTS: A total of 68 eyes of 47 patients were included with mean age was 73.1±7.0y and 60% were females. Surgical success at one year was achieved in 68.8% of eyes, with 67.6% success in mild, 80.0% in moderate, and 66.7% in severe OAG cases. IOP was significantly reduced from a baseline of 16.1±0.5 to 14.7±0.4 mm Hg at one year (P=0.0004). The number of medications decreased significantly in all eyes from a baseline of 1.2±0.1 to 0.6±0.1 at one year (P<0.0001). When stratified by glaucoma severity, only the mild group experienced a statistically significant decrease from a baseline of 1.1±0.1 to 0.4±0.1 (P<0.0001). BCDVA improved significantly from baseline to one year. No sight-threatening complications were reported. CONCLUSION: Canaloplasty using the STREAMLINE® surgical system combined with CE effectively reduces IOP at one year in mild to severe OAG with minimal complications. IOP lowering efficacy, reduction in IOP lowering medications, and safety in moderate to severe OAG require further study.http://ies.ijo.cn/en_publish/2025/9/20250908.pdfopen angle glaucomastreamline surgical systemmicroinvasive glaucoma surgerycanaloplasty
spellingShingle Iden M. Amiri
Heran W. Gebreyesus
Nathan Grove
Jennifer L. Patnaik
Malik Y. Kahook
Leonard K. Seibold
One year clinical outcomes with a novel canaloplasty device in mild to severe open angle glaucoma
International Journal of Ophthalmology
open angle glaucoma
streamline surgical system
microinvasive glaucoma surgery
canaloplasty
title One year clinical outcomes with a novel canaloplasty device in mild to severe open angle glaucoma
title_full One year clinical outcomes with a novel canaloplasty device in mild to severe open angle glaucoma
title_fullStr One year clinical outcomes with a novel canaloplasty device in mild to severe open angle glaucoma
title_full_unstemmed One year clinical outcomes with a novel canaloplasty device in mild to severe open angle glaucoma
title_short One year clinical outcomes with a novel canaloplasty device in mild to severe open angle glaucoma
title_sort one year clinical outcomes with a novel canaloplasty device in mild to severe open angle glaucoma
topic open angle glaucoma
streamline surgical system
microinvasive glaucoma surgery
canaloplasty
url http://ies.ijo.cn/en_publish/2025/9/20250908.pdf
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