Type 1 CNV demonstrates occult leakage on fluorescein angiography. Polypoidal choroidal vasculoplathy (PCV) is a subtype of Type 1 CNV that is characterized by the presence of polyp-like aneurysmal dilations of the branching vascular network.

Choroidal neovascular membranes (CNVM) can be described based on its location relative to the fovea, location relative to the retinal pigment epithelium, and fluorescein angiography findings. Location relative to the fovea: Subfoveal (underneath the fovea) Juxtafoveal (1-199 microns from the fovea) Extrafoveal (behind 200 microns from the fovea)

CNV originates from choroidal blood vessels, which can be further classified into occult (CNV spreads beneath RPE cells, Fig. 2A, B) and classic (CNV breaks through RPE layer and grows in...

In our study, we assessed the diagnostic capability of the new Heidelberg (experimental) OCTA device for detecting CNV in anti-VEGF treatment naive patients compared to a standard multimodal approach. The OCTA images were compared with findings from FFA, indocyanine green angiography (ICGA) and OCT in eyes suspected to have CNV.

Sensitivity and specificity of OCT-A for detecting choroidal neovascularisation (CNV) in treatment-naïve neovascular age-related macular degeneration (nAMD) patients is examined, using the Heidelberg Spectralis in a ‘real world’ setting. Overall, 43 …

Jan 2, 2025 · Classic CNV is characterized by well-defined, easily identifiable new blood vessels, while occult CNV involves more subtle changes that may be harder to detect. Regardless of the type, both forms can significantly impact your vision if left untreated.

Spectral-domain optical coherence tomography (SD-OCT) has emerged as the ancillary examination of choice to assist the diagnosis and management of neovascular age-related macular degeneration (AMD).

Results: In 87.5% of angiographically labeled "classic" CNV a discreet subretinal lesion corresponding to the neovascular complex could be seen above and separate to the retinal pigment epithelium on OCT. This was found in only 13.3% of "occult" CNV.

One hundred and fifty-three eyes of 130 consecutive patients with subfoveal occult CNV diagnosed on scanning laser ophthalmoscope (SLO) fluorescein angiography (FA) and SLO indocyanine green angiography (ICGA) were evaluated with OCT.

Minimally and predominantly classic CNV membranes demonstrated subretinal tissue on OCT in all cases and appeared to show a significantly greater volume of subretinal tissue than occult membranes. Subretinal fluid was present in all of the predominantly classic cases.