This picture shows a region in the venusian atmosphere about 60 km from the surface, at a wavelength of about 5 micrometers. In this figure, the dipole assumes an eye-like shape and from here until the last image, it is possible to see how its shape evolves rapidly in a span of only 24 hours. The yellow dot in the image indicates the location of the south pole.
ESA/VIRTIS/INAF-IASF/Obs. de Paris-LESIA/Univ. of Oxford