  We report on high angular resolution near-infrared (NIR) observations of
three galaxy clusters at different redshifts using adaptive optics (AO). In the
case of the barred spiral \object{UGC 1347} in Abell 262 we presented the first
AO results obtained using a laser guide star. The observations have been
carried out with the MPE/MPIA adaptive optics laser guide star system ALFA and
the ESO AO system ADONIS combined with the SHARP II+ camera built at MPE. The
three clusters are well suited for high resolution investigations since bright
field stars for tip-tilt or wavefront sensing are located close to the line of
sight to cluster galaxies. In summary our high angular resolution NIR data
combined with other information clearly indicates star formation activity or
interaction between cluster members at all three redshifts. The results and
implications for future high angular resolution adaptive optics observations
are discussed in the framework of current galaxy and cluster evolution models.
