Abstract: In the present paper, the paraxial lateral aberrations, in which the aberration coefficients are solved by asymptotic solutions of paraxial equation, have been verified and tested by a two-electrode electrostatic spherical concentric system model. The two special solutions expressed by asymptotic solutions and accurate solutions in a two-electrode electrostatic spherical concentric system model have been deduced. Result completely proves that the approach based on asymptotic solutions to solve the paraxial lateral aberrations are correct and practicable. The whole expression of paraxial chromatic aberration for imaging electron optics has been deduced, in which the paraxial chromatic aberration of magnification and the paraxial chromatic aberration of third order have been firstly given. The Recknagel-Artimovich formula of paraxial chromatic aberration of second order has been deduced and confirmed which possess an greatest part in the whole paraxial lateral aberrations. A simple and clear form for expressing paraxial lateral aberrations of imaging electron optics is suggested for practical use. Results of the present paper will have theoretical and practical significance for the design of image tubes.