The high energy approximation is used for semiclassical scattering in the complex nuclear potential (the optical model). It is shown that the corresponding three-dimensional wave functions, distorted waves, depend on the effective potential instead of that used from the beginning, and the pre exponential factor appears, as compared with the known eikonal expression. A deflection of the trajectory of motion is included playing an important role in heavy ion collisions. The method is developed for calculating, in analytic form, the typical matrix elements of direct collision processes. 12 refs.