Changes in the Lamina and Prelamina After Intraocular Pressure Reduction in Patients With Primary Open-Angle Glaucoma and Acute Primary Angle-Closure

2014 ◽  
Vol 55 (1) ◽  
pp. 233 ◽  
Author(s):  
Hae-Young Lopilly Park ◽  
Hye-Young Shin ◽  
Kyoung In Jung ◽  
Chan Kee Park
Keyword(s):  
Intraocular Pressure ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Angle Closure ◽  
Pressure Reduction ◽  
Open Angle ◽  
Acute Primary Angle Closure ◽  
Primary Angle Closure ◽  
Intraocular Pressure Reduction

XEN implant in primary and secondary open-angle glaucoma: A 12-month retrospective study

2019 ◽  
Vol 30 (5) ◽  
pp. 1034-1041 ◽  
Author(s):  
Ana Ibáñez-Muñoz ◽  
Víctor Santiago Soto-Biforcos ◽  
Leticia Rodríguez-Vicente ◽  
Irune Ortega-Renedo ◽  
María Chacón-González ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Pressure Control ◽  
Pressure Reduction ◽  
Open Angle ◽  
Xen Gel Stent ◽  
Intraocular Pressure Reduction ◽  
Study Population ◽  
Xen Implant

Purpose: The aim of this study was to compare the efficacy and safety of the XEN45 gel stent implant in patients with primary open-angle glaucoma or secondary open-angle glaucoma. Patients and methods: This is a retrospective, single-center, and comparative study conducted in consecutive primary open-angle glaucoma or secondary open-angle glaucoma patients, who underwent a XEN45 implant, alone or in combination with phacoemulsification. The primary end point was the intraocular pressure at the end of the follow-up period. Complete success was defined as an intraocular pressure reduction of ⩾20% from baseline to month 12 without antiglaucoma treatment. Results: Of the 69 patients (74 eyes) who were screened, 68 patients (73 eyes) were included in this study. In the overall study population, XEN gel stent significantly reduced intraocular pressure from 22.3 (21.0–23.5) mmHg at baseline to 15.3 (14.3–16.3) mmHg, p < 0.0001. As compared to baseline, mean intraocular pressure reduction was –7.3 (−9.7 to −5.0) and –6.6 (−8.4 to −4.8) mmHg in the primary open-angle glaucoma and secondary open-angle glaucoma groups, respectively, p = 0.6357. At month 12, 53 (72.6%) eyes were classified as success. The mean number of antiglaucoma medications was significantly reduced in both groups ( p < 0.0001, each). Complications included anterior chamber flattening (one eye), XEN implant extrusion (four eyes), one of whom had an endophthalmitis that required vitrectomy, and one eye underwent a trabeculectomy due to inadequate intraocular pressure control. Conclusion: XEN gel stent, either alone or in combination with phacoemulsification, provided a significant reduction in both intraocular pressure and medical antiglaucoma treatment, but with some safety concerns, in a cohort of patients with open-angle glaucoma (primary or secondary).

A Schlemm Canal Microstent for Intraocular Pressure Reduction in Primary Open-Angle Glaucoma and Cataract

Ophthalmology ◽  
2019 ◽  
Vol 126 (1) ◽  
pp. 29-37 ◽  
Author(s):  
Thomas W. Samuelson ◽  
David F. Chang ◽  
Robert Marquis ◽  
Brian Flowers ◽  
K. Sheng Lim ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Pressure Reduction ◽  
Open Angle ◽  
Intraocular Pressure Reduction

Nasal trabeculo-ciliary angle and relative lens vault as predictors for intraocular pressure reduction following phacoemulsification

2021 ◽  
pp. 112067212110550
Author(s):  
Riham SHM Allam ◽  
Karim A Raafat ◽  
Mai Nasser Abd Elmohsen
Keyword(s):  
Intraocular Pressure ◽  
Open Angle Glaucoma ◽  
Anterior Chamber Depth ◽  
Angle Closure Glaucoma ◽  
Angle Closure ◽  
Pressure Reduction ◽  
Open Angle ◽  
Lens Position ◽  
Intraocular Pressure Reduction ◽  
Lens Vault

Purpose To evaluate quantitative relationships between biometric measurements and expected intraocular pressure reduction following phacoemulsification. Design A prospective, comparative clinical study. Methods Forty nine candidates for phacoemulsification were included. Intraocular pressure was measured preoperatively and after 7 and 30 days. Ocular biometrics were measured using optical biometry and ultrasound biomicroscopy preoperatively and 1 month postoperatively. Results Patients were sub-grouped into open-angle glaucoma (12 eyes), angle-closure glaucoma (18 eyes), and cataract-only groups (19 eyes). The mean intraocular pressure reduction was −1.67 ± 2.73, −13.11 ± 7.98, and −7.50 ± 3.58 mmHg in the cataract-only, angle-closure glaucoma, and open-angle glaucoma groups ( p = 0.001). The delta-intraocular pressure at day 7 showed positive correlations with lens vault and relative-lens vault ( p = 0.005 and 0.001). It showed negative correlations with lens position, relative-lens position, anterior chamber depth, aqueous depth, and nasal and temporal angles in addition to lens thickness, anterior vault, nasal trabeculo-ciliary angle, and temporal-trabeculo-ciliary angle at the end of the follow-up period. Regression analysis revealed significant associations between preoperative intraocular pressure and both nasal-trabeculo-ciliary angle and anterior vault ( p = 0.038 and 0.019) and delta-intraocular pressure and both nasal-trabeculo-ciliary angle and relative-lens vault ( p = 0.001 and ≤0.001) with an area under the curve of 0.71 for relative-lens vault. For every degree decrease in nasal-trabeculo-ciliary angle, there was an expected 0.33 mmHg intraocular pressure reduction with no expected change if nasal-trabeculo-ciliary angle decreased to <22°. Conclusions The relationship between anterior-segment-biometrics could determine intraocular pressure behavior after phacoemulsification. The preoperative nasal-trabeculo-ciliary angle and relative-lens vault could be significant predictors for postoperative intraocular pressure reduction.

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