  In this paper, we have discussed the effects of quantum fluctuations spewed
by a black hole on its deflection angle. The Gauss-Bonnet theorem (GBT) is
exploited with quantum corrections through the Extended Uncertainty Principle
(EUP) and the corresponding deflection angle is obtained. Moreover, we have
attempted to broaden the scope of our work by subsuming the effects of plasma
medium on the deflection angle as well. To demonstrate the degree of
difference, the acquired results are compared with the prevailing findings.
