The analytical explanation of axial birefringence revealed earlier by the t e c h n i q u e o f f i e l d a p p l i e d mo l e c u l a r d y n a mi c s c o mp u t e r s i mu l a t i o n i s g i v e n. The point group symmetries of achiral molecules admitting the effect are determined and the estimation of the anisotropy is presented. The effect may give information on off-diagonal elements of the Rosenfeld polarizabifity tensor of achiral molecules.