This paper reports the theoretical calculation of Breit, self-energy, and vacuum polarization corrections in the Ne
like system using multi-configuration Dirac-Fock method with the orbital polarization. The relations of these corrections
with the atomic number and the orbital symmetries are shown and the calculated correction energies are compared with
other calculated results. Our Breit correction energies are all smaller by leV as maximum than the other theoretical
Breit correction energies and the differences reveal systematical relation with atomic number. It is found that the
configuration interactions have great effect on Breit corrections while the orbital polarization has much smaller effect
on Breit corrections. The self-energy and vacuum polarization obtained by our calculation are much different from that
in previous literatures for some transitions.