Purpose: To demonstrate high-resolution, motion-corrected, volume-fused optical coherence tomography (OCT) for assessing longitudinal changes in macular dot form subretinal drusenoid deposits (SDDs).
Methods: Six consecutive isotropic volume raster scans over 6 × 6 mm (500 × 500 A-scans) were acquired using a high-resolution (2.7 µm axial resolution) spectral domain OCT prototype instrument.
J Vitreoretin Dis
August 2024
To review the first Research and Safety in Therapeutics (ReST) Committee webinar and summarize the most current recommendations regarding diagnosis and management. The ReST Committee is comprised of members of the American Society of Retina Surgeons (ASRS). At regular internal meetings, safety issue reports from the website are reviewed.
View Article and Find Full Text PDFOptical coherence tomography angiography (OCTA) can visualize vasculature structures, but provides limited information about blood flow speed. Here, we present a second generation variable interscan time analysis (VISTA) OCTA, which evaluates a quantitative surrogate marker for blood flow speed in vasculature. At the capillary level, spatially compiled OCTA and a simple temporal autocorrelation model, () = exp(-), were used to evaluate a temporal autocorrelation decay constant, , as the blood flow speed marker.
View Article and Find Full Text PDFPurpose: To describe retinal pigment epithelium (RPE) aperture preceding the collapse of retinal pigment epithelium detachments (RPED) in eyes with neovascular and non-neovascular age-related macular degeneration (AMD).
Methods: Medical records from five patients with RPE aperture associated with vascular and avascular RPED were reviewed between 2010 and 2021 at the New England Eye Center at Tufts Medical Center. Main outcome measures were analysis of RPE aperture characteristics and temporal course of RPED collapse.
Ophthalmic Surg Lasers Imaging Retina
February 2023
Background And Objective: The purpose of this article is to demonstrate the optical coherence tomography angiography (OCTA) Analysis Toolkit (OAT), a custom-designed software package, as a repeatable and reproducible tool for computing OCTA metrics across different devices.
Materials And Methods: Fourteen participants were imaged using three devices. Foveal avascular zone, vessel index, vessel length index, and vessel diameter index were calculated using the OAT.