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 World Is What It Is in 1996. The biography has been extensively reviewed: the reviewers include Paul Theroux, who wrote an earlier book about Naipaul. The biography was selected by the editors of the "New York Times Book Review" as one of the "Times"' "10 Best Books of 2008". It won the 2008 National Book Critics Circle Award in Biography, and the British literary award the Hawthornden Prize. The World Is What It Is The World Is What It Is: The Authorized Biography of V. S. Naipaul is a biography of the Nobel Prize-winning author V. S. Naipaul by Patrick French. It was published in