Mydriasis disorders e.g. epilepsy, stroke, and impending brain herniation are known to lead to temporal mydriasis as well. A brain catastrophe, or a rapidly increasing brain mass, can cause compression of the oculomotor nerve. In cases of head injury or orbit trauma (eye injury), the iris sphincter (the muscle responsible for closing the pupil) or the nerves controlling it can be damaged, reducing or eliminating the normal pupillary light reflex. A mydriatic is an agent that induces dilation of the pupil. Drugs such as tropicamide are used in medicine to permit examination of the retina and other deep structures of the
The Widening Gyre (novel) The Widening Gyre (novel) The Widening Gyre is a 1983 novel by Robert B. Parker, featuring his private detective character Spenser. The title comes from the first line of W.B. Yeats poem "The Second Coming". Spenser is hired to head up the security detail for Congressman Meade Alexander as he runs for the Senate. The congressman confides to Spenser that he is being blackmailed by someone who wants him to drop out of the senate race. The congressman's wife Ronni drinks too much and there is an explicit sex tape of her and a much younger man. Spenser's assignment is