Mydriasis eye, and also to reduce painful ciliary muscle spasm (see cycloplegia). One effect of administration of a mydriatic is intolerance to bright light (photophobia). Purposefully-induced mydriasis via mydriatics is also used as a diagnostic test for Horner's syndrome. Mydriasis can be induced via modulation of adrenergic or cholinergic signalling. Within the adrenergic system, norepinephrine is a hormone and neurotransmitter responsible for regulating physiological processes in the body, including the involuntary muscles of the autonomic nervous system (such as the dilation or constriction of the pupil aperture via the muscles of the iris). Modulation of norepinephrine signalling can induce mydriasis. For
Into the Widening World Into the Widening World Into the Widening World is a collection of 26 short fictional coming-of-age stories. It was written by many authors including: Nadine Gordimer, Ben Okri, Bharati Mukherjee, Alice Munro and Gabriel Garcia Marquez. "Columba"- Michelle Cliff "Weight-Reducing Diet"- Jorge Edwards "On Sunday"- Mario Vargas "Artificial Roses"- Gabriel Garcia Marquez "The Raffle"- V. S. Naipaul "Exchange Value"- Charles Johnson "Borders"- Thomas King "Saints"- Bharati Mukherjee "The Turkey Season"- Alice Munro "The Gifts of War"- Margaret Drabble "The Nothingness Forest"- Margareta Ekstrom "Christmas"- John McGahern "That Wall, That Mimosa"- Merce Rodoreda "Date with a bird"- Tatyana Tolstaaya "Turkish Soldier