Mydriasis surgery. Mydriasis Mydriasis () is the dilation of the pupil, usually having a non-physiological cause, or sometimes a physiological pupillary response. Non-physiological causes of mydriasis include disease, trauma, or the use of drugs. Normally, as part of the pupillary light reflex, the pupil dilates in the dark and constricts in the light to respectively improve vividity at night and to protect the retina from sunlight damage during the day. A "mydriatic" pupil will remain excessively large even in a bright environment. The excitation of the radial fibres of the iris which increases the pupillary aperture is referred to as a
The Widening Gyre (album) Poison Glen". On 5 February 2015, before its release, "The Widening Gyre" was awarded full marks by The Irish Post's columnist Joe Giltrap, describing the album as "a really nicely balanced album", "an album of pure quality", "a great album from a great band". The album received a very positive review from the New York-based Irish Voice's music critic Paul Keating, writing: "[Would] Altan have shared stages and off-hours sparks with a wealth of kindred musical spirits from both sides of the Atlantic and the Irish Sea [over the past thirty years], the recording shows that depth and creativity with