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Updated: Aug 1, 2025
Author Spotlight: Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration
Published on: May 26, 2023
Posterior vitreous cortex hyalocytes visualization in asymmetric pigmented paravenous chorioretinal atrophy (PPCRA)
Julia Fallon1,2, Sofia Ahsanuddin1,2, Oscar Otero-Marquez1,2
1Department of Ophthalmology, New York Eye and Ear Infirmary of Mount Sinai, 310 East 14th Street, New York, NY, 10003, USA.
Purpose:
Pigmented paravenous chorioretinal atrophy (PPCRA) is a rare retinal disease with inflammatory or infectious associations affecting the retinal pigment epithelium (RPE) and choriocapillaris. While the clinical manifestations and imaging findings are well-documented in the literature, no reports exist describing potential biomarkers of intraocular inflammation or ischemia in this condition, such as the presence of posterior vitreous cortex hyalocytes.
Observations:
We report a case of a 26-year-old female who presented with progressive peripheral vision loss in both eyes over one year. Dilated fundus examination revealed bilateral, asymmetric bone-spicule pigmentary changes along the retinal veins, which appeared more advanced in the left eye. Optical coherence tomography (OCT) revealed the presence of numerous hyalocytes in both eyes 3 μm anterior to the inner limiting membrane (ILM). The morphology of the hyalocytes differed between the two eyes, suggesting different levels of activation related to the stage of the disease. Specifically, the left eye, with more advanced disease, exhibited hyalocytes with multiple elongated processes consistent with a quiescent state, whereas the right eye, with the less advanced disease state, exhibited amoeboid-appearing hyalocytes suggestive of more active inflammation.
Conclusions:
This case illustrates how hyalocyte morphology may reflect the underlying activity of an indolent retinal degeneration and provide a useful biomarker of disease progression.
