Ontology highlight
ABSTRACT: Prcis
Short-term use of the Balance Goggles System (BGS) in glaucoma patients was not associated with the observable changes in conventional ocular coherence tomography (OCT) imaging, but metabolic imaging using peripapillary flavoprotein fluorescence (FPF) may represent a useful adjuctive investigation.Objective
To determine whether the intraocular pressure (IOP)-lowering effects of the BGS are accompanied by changes in retinal thickness measured by OCT, retinal vascular density measured by ocular coherence tomography-angiography (OCTA), or novel peripapillary metabolic profiling using FPF measured by a fundus camera.Design
Prospective comparative case-series.Subjects
Eight eyes from 8 patients with open angle glaucoma ranging from mild to severe.Methods
In this prospective, single-center, open-label, nonrandomized, and single-arm study patients received a baseline evaluation including retinal imaging, then 1 hour of negative pressure application through the BGS, followed by repeat retinal imaging. Participants then used the BGS at home for 1 month and underwent a repeat evaluation at the conclusion of the trial.Main outcome measures
Changes in nerve fiber layer thickness, OCTA vascular parameters, and FPF scores.Results
Mean baseline IOP was 18.0±3.1 mmHg and there was no significant change in IOP at follow-up. At 1 month compared with baseline, there was a statistically significant improvement in FPF optic nerve head rim scores (12.7±11.6 to 10.5±7.5; P =0.04). In addition, there was a trend toward an increase in retinal nerve fiber layer thickness after 1 month (69.5±14.2 to 72.0±13.7; P =0.1), but there were no statistically significant differences observable with any of the OCTA vascular parameters either at 1 hour or after 1 month.Conclusions
There were no significant changes observable using conventional OCT imaging after short-term use of the BGS, although metabolic imaging using FPF may be a useful potential biomarker to complement existing investigations. Additional studies are warranted to further investigate these changes.
SUBMITTER: Sun MT
PROVIDER: S-EPMC9378591 | biostudies-literature | 2022 Aug
REPOSITORIES: biostudies-literature
Sun Michelle T MT Beykin Gala G Lee Wen-Shin WS Sun Yang Y Chang Robert R Nunez Mariana M Li Katherine Zhongqiu KZ Knasel Cara C Rich Collin C Goldberg Jeffrey L JL
Journal of glaucoma 20220613 8
<h4>Prcis</h4>Short-term use of the Balance Goggles System (BGS) in glaucoma patients was not associated with the observable changes in conventional ocular coherence tomography (OCT) imaging, but metabolic imaging using peripapillary flavoprotein fluorescence (FPF) may represent a useful adjuctive investigation.<h4>Objective</h4>To determine whether the intraocular pressure (IOP)-lowering effects of the BGS are accompanied by changes in retinal thickness measured by OCT, retinal vascular density ...[more]