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) get their teeth into", describing "The Widening Gyre" as "an absolute treasure trove" and Ní Mhaonaigh's voice as "indescribably beautiful", "songs [occupying] a special place on any Altan album", adding: "Ní Mhaonaigh's soaring, soul-stirring vocals on "Far Beyond Carrickfinn" [...] is one of the most touching things you'll hear this year". The Telegraph gave it 4 stars (out of 5), describing it as "a wonderful mix of Irish and Appalachian music." On 9 March 2015, "The Widening Gyre" was honoured "album of the week" on RTÉ radio 1. PopMatters's gave it a rating of 8 stars out of 10. Music