Specialists from the Cancer Treatment Centers of America have uncovered alarming symptoms of possible lung cancer that affect the eyes, reports the Daily Express.
The early symptoms of a malignant tumor include shortness of breath and mild cough, but as the disease progresses, these symptoms become more serious and intense, and also affect other organs. For example, non-small cell lung cancer (NSCLC) often begins in the bronchi and then spreads to other parts of the body and damages nerves.
According to scientists, cancer can cause Horner’s syndrome, which affects the sympathetic nervous system and is expressed by the drooping of the upper eyelid, constriction of the pupil, drooping of the eyeball, as well as the absence of sweating on the affected side of the face.
If metastatic cells invade the brain or spinal cord, symptoms may include blurred vision or double vision.
NSCLC is the most common form of lung cancer, accounting for about 85-90 percent of the nearly 230,000 lung cancers diagnosed each year in the United States. The five-year survival rate for lung cancer remains at just 10-20 percent.