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
The Widening Gyre (album) of their new album to be released in Ireland on 20 February 2015, in the UK on 23 February 2015 and in the US on 24 February 2015. And as they borrowed the title from "The Second Coming", one of W. B. Yeats poems, the first Irishman to be awarded the Nobel Prize for Literature in 1923. Altan's official website published a presentation of their new studio album "The Widening Gyre" giving many details about the new album: the new musical direction taken by the band, the album recording process and the participation of numerous guest musicians as well as