“…Due to Hering's law of equal innervation, weakness of the LPSM in the ptotic eyelid caused to increased innervation of both levators, thus resulting in pseudoretraction of the enhanced contralateral eyelid. 3,11 Since this retraction type persists for a long time, ocular irritation symptoms may be seen because of exposure in the affected side, as in our case. 3 For confirmation of this situation depend on MG, ophthalmologist should cover or elevate the ptotic eyelid manually (Figure 2).…”