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Widefield Optical Coherence Tomography Monitoring of the Peri-venular Fern-like Pattern of Paracentral Acute Middle Maculopathy

Overview
Journal Am J Ophthalmol Case Rep
Specialty Ophthalmology
Date 2021 Mar 25
PMID 33763621
Citations 1
Authors
Prashanth G Iyer
Swarup S Swaminathan
Omer Trivizki
Yingying Shi
Mengxi Shen
Mary Kansora
Giovanni Gregori
Philip J Rosenfeld
Affiliations
Soon will be listed here.
Abstract

Purpose: To demonstrate the ability of widefield swept source optical coherence tomography (OCT) imaging to monitor peri-venular fern-like patterns of paracentral acute middle maculopathy (PAMM) associated with retinal arterial occlusions.

Observations: The peri-venular fern-like pattern of PAMM was diagnosed on the 12 × 12 mm structural OCT images from three patients. Fluorescein angiography images were unremarkable. Over time, all three patients demonstrated significant improvement in visual acuity with resolution of their peri-venular PAMM.

Conclusions: The peri-venular fern-like pattern of PAMM is usually associated with retinal vein occlusions, but we identified three cases with this pattern in eyes with presumed incomplete retinal arterial occlusions. Our cases support the ischemic cascade theory that begins within the deep capillary plexus and ascends in the retina depending on the severity of the ischemic event. Using the 12 × 12 mm structural OCT images, we are able to demonstrate a wider area of ischemia in PAMM compared with the traditional 6 × 6 mm scans.

Citing Articles

Monitoring Delayed Toxoplasmosis-Related Branch Retinal Artery Occlusion Using Widefield en face Optical Coherence Tomography and Multimodal Imaging.

Iyer P, Ashkenazy N, Liu J, Laura D, Marquez M, Albini T Case Rep Ophthalmol. 2023; 14(1):369-375.

PMID: 37901619 PMC: 10601836. DOI: 10.1159/000528787.

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