  In this paper, we use the metric coefficients and the equation of motion in
the 2nd post-Newtonian approximation in scalar-tensor theory including
intermediate range gravity to derive the deflection of light and compare it
with previous works. These results will be useful for precision astrometry
missions like GAIA (Global Astrometric Interferometer of Astrophysics), SIMS
(The Space Interferometry Mission) and LATOR (Laser Astrometric Test Of
Relativity) which aim at astrometry with microarcsecond and nanoarcsecond
accuracies and need 2nd post-Newtonian framework and ephemeris to determine the
stellar and spacecraft positions.
