  Calculations are presented for electronic Raman scattering and infrared
conductivity in a $d_{x^{2}-y^{2}}$ superconductor including the effects of
elastic scattering via anisotropic impurities and inelastic spin-fluctuation
scattering. A consistent description of experiments on optimally doped Bi-2212
is made possible by considering the effects of correlations on both inelastic
and elastic scattering.
