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Mydriasis is the dilation of the pupil, usually having a non-physiological cause, [3] or sometimes a physiological pupillary response. [4] Non-physiological causes of mydriasis include disease, trauma, or the use of certain types of drugs. It may also be of unknown cause.
A human adult exhibiting voluntary control over his iris muscles, where he can cause his pupil to dilate and constrict on command A dilation response ( mydriasis ), is the widening of the pupil and may be caused by adrenaline ; anticholinergic agents; stimulant drugs such as MDMA , cocaine , and amphetamines ; and some hallucinogenics (e.g. LSD ...
Horner's syndrome, also known as oculosympathetic paresis, [1] is a combination of symptoms that arises when a group of nerves known as the sympathetic trunk is damaged. The signs and symptoms occur on the same side (ipsilateral) as it is a lesion of the sympathetic trunk.
Iniencephaly is a rare type of cephalic disorder [1] [2] characterised by three common characteristics: a defect to the occipital bone, spina bifida of the cervical vertebrae and retroflexion (backward bending) of the head on the cervical spine. [3]
The skull bone behind Hermansen’s right eye was gone. In its place was a hole, allowing her brain to press against the eye, which explained the pulsating, said Dr. Netanel Ben-Shalom, a ...
The cause of serotonin toxicity or accumulation is an important factor in determining the course of treatment. Serotonin is catabolized by monoamine oxidase A in the presence of oxygen , so if care is taken to prevent an unsafe spike in body temperature or metabolic acidosis, oxygenation will assist in dispatching the excess serotonin.
Often, patients can only recognize their prodrome symptoms when they get to the pain phase and look back, Singh says. During a prodrome period, the Mayo Clinic and American Migraine Foundation say ...
Eagle syndrome (also termed stylohyoid syndrome, [1] styloid syndrome, [2] stylalgia, [3] styloid-stylohyoid syndrome, [2] or styloid–carotid artery syndrome) [4] is an uncommon condition commonly characterized but not limited to sudden, sharp nerve-like pain in the jaw bone and joint, back of the throat, and base of the tongue, triggered by swallowing, moving the jaw, or turning the neck. [1]