  The high angular resolution and dynamic range achieved by the NACO adaptive
optics system on the VLT is an excellent tool to study the morphology of
Planetary Nebulae (PNe). We observed four stars in different evolutionary
stages from the AGB to the PNe phase.
  The images of the inner parts of the PN Hen 2-113 reveal the presence of a
dusty torus tilted with respect to all the other structures of the nebula and
the present of hot dust close to the hot central star. The NACO observations of
Roberts 22 reveal an amazingly complex nebular morphology with a S-shape that
can be interpreted in terms of the 'warped disc' scenario of Icke (2003).
  Combined NACO and MIDI (the VLTI mid-infrared interferometer) observations of
the nebula OH 231.8+4.2 have enabled us to resolve a very compact (diameter of
30-40 mas, corresponding to 40-50 a.u.) dusty structure in the core of the
nebula. Finally, recent observations of the AGB star V Hydrae show that this
star present a departure from spherical symmetry in its inner shell and is
probably on its way to become an asymmetrical planetary nebula. These
observations show that NACO is a great instrument for the discovery and study
of small structures in circumstellar envelopes and PNe and a good complement to
interferometric devices.
