  The recently-finished Edinburgh UVX quasar survey at B < 18 is used together
with other complete samples to estimate the shape and evolution of the optical
luminosity function in the redshift range 0.3 < z < 2.2. There is a
significantly higher space density of quasars at high luminosity and low
redshift than previously found in the PG sample of Schmidt & Green (1983), with
the result that the shape of the luminosity function at low redshifts (z < 1)
is seen to be consistent with a single power-law. At higher redshifts the slope
of the power-law at high luminosities appears to steepen significantly. There
does not appear to be any consistent break feature which could be used as a
tracer of luminosity evolution in the population.
