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Mydriasis is the dilation of the pupil, usually having a non-physiological cause, [3] or sometimes a physiological pupillary response. [4] Non-physiological causes of mydriasis include disease, trauma, or the use of certain types of drugs. It may also be of unknown cause.
All cycloplegics are also mydriatic (pupil dilating) agents and are used as such during eye examination to better visualize the retina. When cycloplegic drugs are used as a mydriatic to dilate the pupil, the pupil in the normal eye regains its function when the drugs are metabolized or carried away.
Dilated fundus examination (DFE) is a diagnostic procedure that uses mydriatic eye drops to dilate or enlarge the pupil in order to obtain a better view of the fundus of the eye. [1] Once the pupil is dilated, examiners use ophthalmoscopy to view the eye's interior, which makes it easier to assess the retina , optic nerve head , blood vessels ...
Stock market holidays are non-weekend business days when the two major U.S. stock exchanges, the New York Stock Exchange (NYSE) and the Nasdaq, are closed for the day. These days often closely ...
In this case, the ptosis is due to interruption innervations to the sympathetic, autonomic Muller's muscle rather than the somatic levator palpebrae superioris muscle. The lid position and pupil size are typically affected by this condition, and the ptosis is generally mild, no more than 2 mm. The pupil might be smaller on the affected side.
Stock Market Holidays Observed by the New York Stock Exchange. Holiday. 2021 . New Year’s Day. Friday, Jan. 1. Martin Luther King Jr. Day. Monday, Jan. 18
A loss of just over 24 percent on May 5, 1893, from 39.90 to 30.02 signaled the apex of the stock effects of the Panic of 1893; the 2007–2008 crash was a 61.8 percent retracement thereof that began on October 11, 2007, and lasted until the closing low on March 9, 2009.
Adie's pupil is caused by damage to peripheral pathways to the pupil (parasympathetic neurons in the ciliary ganglion that cause pupillary constriction to bright light and with near vision). The pathophysiologic mechanism which produces an Argyll Robertson pupil is unclear, but is believed to be the result of bilateral damage to the pretectal ...