Mydriasis More generally, mydriasis also refers to the natural dilation of pupils, for instance in low light conditions or under sympathetic stimulation. An informal term for mydriasis is blown pupil, and is used by medical providers. It is usually used to refer to a fixed, unilateral mydriasis, which could be a symptom of raised intracranial pressure. The opposite, constriction of the pupil, is referred to as miosis. Both mydriasis and miosis can be physiological. Anisocoria is the condition of one pupil being more dilated than the other. There are two types of muscle that control the size of the iris: the
The Widening Gyre (album) lots of new stuff to savor and some reinventions of recognizable material as well, interpreted by some of the best musicians you can find in roots music.". "The Widening Gyre" received a four star album review (out of 5) from The Irish Times's reviewer Siobhan Long, stating that Altan "have reinvigorated their sound in the process of [recording in] Nashville with newcomer Martin Tourish on piano accordion [and] an all-star cast [of Appalachian bluegrass musicians]". The Arts Desk website's music critic Peter Quinn, stated: "Listeners looking for the uniquely driving tune sets that Altan are famous for have plenty to