Quick Answer. The most common causes of wavy lines in eyesight include ocular migraine and macular degeneration, according to Healthhype.com. Metamorphopsia is the medical term for this form of vision disturbance, which may be either transient or constant, depending on the cause of the disorder. Continue Reading.
Halons are low-toxicity, chemically stable compounds that have been used for fire and explosion protection from early in the last century. Halon has proven to be an extremely effective fire suppressant. Halon is clean (i.e., leaves no residue) and is remarkably safe for human exposure.
halo device. Orthopedics A device used to manage cervical spine injuries to minimize neurological damage, requiring long-term immobilization; in the halo device, pins are inserted on the outer skull for skeletal traction, using a 2-3 kg weight for upper cervical injuries and 10-15 kg for lower cervical injuries.