  In this paper we have assumed a weak-field regime to explore the
gravitational lensed photons in a 4 dimensional Einstein-Gauss-Bonnet gravity,
which is very much in the limelight these days. The investigation is conducted
in three distinct paradigms: uniform plasma, singular isothermal sphere and a
non-singular isothermal sphere. The lensing angle associated with the
distribution factor of the medium is individually derived for each case and
further utilized to study the magnification of the image source brightness,
selectively for the uniform plasma and singular isothermal sphere. The attained
results are brought forth in contrast with the standard Schwarzschild geometry
