  At large proton energy, the final state interactions of the knocked out
nucleon in $\eep$ reactions off nuclear targets can be described within the
eikonal approximation, treating the spectator particles as a collection of
fixed scattering centers. We use a generalization of this approach, suitable to
take into account the possible occurrence of color transparency, to carry out
an accurate calculation of the missing momentum distribution of the process
$^{4}He(e,e^\prime p)^{3}H$. The pattern of final state interaction effect is
analyzed for different kinematical setups in the domain corresponding to $2 \le
Q^2 \le 20$ (GeV/c)$^2$.
