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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 drug.
Nystagmus as seen in a case of ocular albinism. The cause of pathological nystagmus may be congenital, idiopathic, or secondary to a pre-existing neurological disorder.It also may be induced temporarily by disorientation (such as on roller coaster rides or when a person has been spinning in circles) or by some drugs (alcohol, lidocaine, and other central nervous system depressants, inhalant ...
Dilation and constriction of the pupil. Pupillary response is a physiological response that varies the size of the pupil, via the optic and oculomotor cranial nerve.. A constriction response (), [1] is the narrowing of the pupil, which may be caused by scleral buckles or drugs such as opiates/opioids or anti-hypertension medications.
A contracted pupil during sleep may be an indication the brain is replaying new memories while a dilated one may hint at older memories being relived, a new study suggests. The study, published in ...
Then comes the more characteristically described extreme and sustained upward deviation of the eyes. In addition, the eyes may converge, deviate upward and laterally, or deviate downward. The most frequently reported associated findings are backwards and lateral flexion of the neck, widely opened mouth, tongue protrusion, and ocular pain.
It would likely be both useful and interesting to make the analysis more readily available to allow eye doctors to counsel their patients better and likely help to improve the generalizability ...
Eye moisture – Tears can indicate sadness, but they are also used to wash and clean the eyes. Damp eyes can be suppressed by crying or an expression of extreme happiness or laughter. In many cultures, men are not expected to cry but may experience damp eyes in place of crying. Pupil dilation – Pupil dilation may be harder to detect by most ...
Joseph Smith, who has Type 2 diabetes, recalled the cumbersome task of taking the bus to an eye specialist, getting his eyes dilated, and then waiting a week for results. “It was horrible,” he ...