In this chapter, we extend our general findings formulated previously to the case of an edge dislocation. We present a refined analytical approximation for the bifurcation point of the second-order zone at the edge dislocation, which closely aligns with previous estimates and simulation results obtained in the present section. We also conduct simulations for the second-order zone, enabling us to numerically determine the bifurcation point (Boulbitch and Korzhenevskii, First published here).