This patient developed radiating chorioretinal folds from an involuted type 1 macular neovascularization (MNV, located below the RPE) following multiple intravitreal Avastin injections.
These folds are imaged on the color and red-free photos, as well as on the OCT thickness map and B-scans. Remarkably, vision has been stable at 20/30 for years.
Learning Points:
Macular neovascularization is also known by other terms, including choroidal neovascular membrane and subretinal neovascular membrane.
However, since these vessels are now known not to necessarily arise just from the choroid, the proper term is macular neovascularization (see Consensus on Neovascular Age-Related Macular Degeneration Nomenclature Study Group Ophthalmology 2020;127;616-636).
MNV is classified according to the location of the new vessels in relation to the RPE and neurosensory retina: type 1 (below the RPE), type 2 (between the RPE and neurosensory retina, and type 3 (within the neurosensory retina).
