Search results
Results from the WOW.Com Content Network
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.
Dilation and constriction of the pupil Pupillary response is a physiological response that varies the size of the pupil between 1.5 mm and 8 mm, [ 1 ] via the optic and oculomotor cranial nerve. A constriction response ( miosis ), [ 2 ] is the narrowing of the pupil, which may be caused by scleral buckles or drugs such as opiates / opioids or ...
The notion of a "mind's eye" goes back at least to Cicero's reference to mentis oculi during his discussion of the orator's appropriate use of simile. [22]In this discussion, Cicero observed that allusions to "the Syrtis of his patrimony" and "the Charybdis of his possessions" involved similes that were "too far-fetched"; and he advised the orator to, instead, just speak of "the rock" and "the ...
The writers settled on smaller pupils and, according to Kirkland, "several model sheets were going back and forth over the fax machines" until the staff were satisfied with the size of Bart's pupils while influenced by the drug. [4] In fact, psychostimulants used to treat ADHD are more likely to cause pupils to become bigger (dilated). [5]
These are not merely catchy sayings. Even though some sources may identify a phrase as a catchphrase, this list is for those that meet the definition given in the lead section of the catchphrase article and are notable for their widespread use within the culture. This list is distinct from the list of political catchphrases.
Light entering the eye strikes three different photoreceptors in the retina: the familiar rods and cones used in image forming and the more newly discovered photosensitive ganglion cells. The ganglion cells give information about ambient light levels, and react sluggishly compared to the rods and cones.
The copied material should not be a substantial portion of the work being quoted and a long quotation should not be used where a shorter quotation would express the same information. What constitutes a substantial portion depends on many factors, such as the length of the original work, and the importance and relevance of the quoted text to ...
In children, the most common cause is a stroke of the ventral pons. [9]Unlike persistent vegetative state, in which the upper portions of the brain are damaged and the lower portions are spared, locked-in syndrome is essentially the opposite, caused by damage to specific portions of the lower brain and brainstem, with no damage to the upper brain.