Publications by authors named "L I Shuba"

Objective: To conduct a pilot study to evaluate and compare the 24-hour habitual intraocular pressure (IOP) and ocular perfusion pressure (OPP) fluctuation in glaucoma patients treated with medical therapy, selective laser trabeculoplasty (SLT) or trabeculectomy.

Design: Pilot study.

Participants: Criteria for inclusion were patients aged 18 years or older with well-controlled IOP with either maximum tolerated medical therapy, previous SLT, or previous trabeculectomy.

View Article and Find Full Text PDF
Article Synopsis
  • The study aims to see if changes in macular perfusion density (PD) can be detected through OCTA imaging before the thinning of the ganglion cell layer (GCL) in patients with early glaucoma.
  • Researchers compared OCT and OCTA imaging in 80 glaucoma patients and 42 healthy subjects every 4 months, assessing GCL thickness and macular PD in different areas of the retina.
  • Results indicated that a decrease in GCL thickness often occurs before noticeable changes in macular PD, suggesting that tracking GCL thickness may be more effective in identifying early glaucoma progression.
View Article and Find Full Text PDF

Purpose: To determine whether more severe baseline damage impedes measurement of minimum rim width (MRW) and peripapillary retinal nerve fiber layer thickness (RNFLT) change in glaucoma patients because of a floor effect.

Design: Prospective, longitudinal cohort study in a hospital-based setting.

Participants: The study included patients with open-angle glaucoma and healthy control subjects.

View Article and Find Full Text PDF

Background/aims: Optical coherence tomography angiography (OCT-A) images are subject to variability, but the extent to which learning impacts OCT-A measurements is unknown. We determined whether there is a learning effect in glaucoma patients and healthy controls imaged with OCT-A.

Methods: Ninety-one open-angle glaucoma patients and 54 healthy controls were imaged every 4 months over a period of approximately 1 year in this longitudinal cohort study.

View Article and Find Full Text PDF

Purpose: Post-acute non-arteritic ischemic optic neuropathy (NAION) and glaucomatous optic neuropathy (GON) can be difficult to differentiate clinically. Our objective was to identify optical coherence tomography (OCT) parameters to help differentiate these optic neuropathies.

Methods: We compared 12 eyes of 8 patients with NAION and 12 eyes of 12 patients with GON, matched for age and visual field mean deviation (MD).

View Article and Find Full Text PDF