  Microscopy and optical imaging are drastically limited by the inhomogeneities
encountered by the light while propagating from the object of interest to the
detection system. In this context, adaptive optics and wavefront manipulation
are able to improve the contrast (visibility) of systems embedded in turbid and
noisy environments. By wavefront shaping, the fluence of the light propagating
through complex systems can be controlled, thus, confining the light in a
defined microscopic region in the volume or at the back of scattering
structures. We can imagine to counterintuitively exploit the optical barriers,
turning them into scattering lenses. In this Thesis we consider these new
generation of lenses: we demonstrate them to be configurable optical devices
able to produce tailored light structures, hence resulting extremely
advantageous if integrated in optical systems.
