  A potential for the vertex and self-energy correction is derived from the
first-order Born theory. The inclusion of this potential in the Dirac equation,
together with the Uehling potential for vacuum polarization, allows for a
nonperturbative treatment of these QED effects within the phase-shift analysis.
Investigating the 12C and 208Pb targets, a considerable deviation of the
respective cross-section change from the Born results is found, which becomes
larger with increasing momentum transfer. Estimates for the correction to the
beam-normal spin asymmetry are also provided. For the 12C nucleus, dispersion
effects are considered as well.
