Swept Source OCT, due to a longer wavelength than conventional Spectral Domain OCT, enables simultaneous visualization of the vitreous, retina and choroid. Moreover, Swept Source OCT enables choroidal imaging and improves retina imaging in eyes with media opacities. First, we introduce a challenging way of interpreting choroidal imaging. Unlike retinal thickness, choroidal thickness varies depending not only on the age and axial length, but also during the day depending on diurnal variations. The video presents particular choroidal layers, concentrating especially on the appearance of the suprachoroidal layer and suprachoroidal space in different retinal diseases. Additionally the contour of the outer choroidoscleral boundary is discussed. Exact delineation of choroidal nevi and differentiation between nevi and tumors is shown. The role of the choroid in vitreomacular interface diseases is discussed. In full thickness macular holes choroidal thickness is normal, but the outer choroidoscleral boundary differs significantly from that observed in healthy eyes. Choroid is thicker in epiretinal membranes but it normalizes after surgery. Based on these observations we conclude that the choroid may contribute to the etiopathogenesis of vitreomacular interface diseases.