Drooping of eyelids
The disruption in the nerve signal pathway, resulting from cancer cells of lungs, causes ptosis, i.e., the drooping of the eyelids. The superior tarsal muscles responsible for keeping eyelids in raised position effects from the partial opening and the eyelids start drooping down. The eyelid drooping doesn’t affect the vision or the health of the eye but is not life-threatening.
The tumors might secrete a hormone which leads to the development of the paraneoplastic syndrome, and the symptoms include: