Swept-source optical coherence tomography angiography metrics of retinal ischaemic perivascular lesions in patients being evaluated for carotid artery stenosis and controls.

Background/aims: Retinal microvascular ischaemia may produce localised middle retinal disruption with corresponding scotoma, a phenomenon termed paracentral acute middle maculopathy (PAMM). Small chronic middle retinal atrophic lesions termed retinal ischaemic perivascular lesions (RIPLs) appear qualitatively similar to PAMM lesions and have recently been hypothesised to result specifically from PAMM. However, no studies have quantitatively demonstrated an ischaemic origin of RIPLs.

Hyperreflective Vasculature: A Negative Prognostic Sign for Retinal Vein Occlusion on Near-Infrared Reflectance Imaging.

Background And Objective: To investigate the clinical significance of hyperreflective vasculature visualized on near-infrared reflectance (NIR) in patients with retinal vein occlusion (RVO).

Methods: In this retrospective study, RVO patients with NIR imaging and at least 1-year follow-up, and without confounding disease, were included. Two blinded independent graders identified vascular hyperreflectivity (HR) by detection of whiter signals in vessels.

Multimodal Imaging Characterization of Arteriolosclerotic Plaques in Retinal Vein Occlusion.

Background And Objectives: To investigate the multimodal imaging features and the clinical associations of arteriolosclerotic plaques in patients with retinal vein occlusion (RVO).

Materials And Methods: This was a retrospective case series of patients with RVO. Demographic and clinical characteristics were recorded at the time of RVO for each participant.