Glaukos, with help from Dr. Richard Little, an ophthalmologist at the University of California, Irvine, developed an infinitesimal titanium stent that can be implanted in the eye to drain fluid and thus reduce the pressure that leads to glaucoma.
In medicine, a stent is a metal or plastic tube inserted into the lumen of an anatomic vessel or duct to keep the passageway open, and stenting is the placement of a stent. There is a wide variety of stents used for different purposes, from expandable coronary,vascular and biliary stents, to simple plastic stents used to allow the flow of urinebetween kidney and bladder. Stent is also used as a verb to describe the placement of such a device, particularly when a disease such as atherosclerosis has pathologicallynarrowed a structure such as an artery.
The amounts of radioactivity present were infinitesimal.
glau·co·ma (glou-kō'mə, glô-)
Any of a group of eye diseases characterized by abnormally high intraocular fluid pressure, damaged optic disk, hardening of the eyeball, and partial to complete loss of vision.
[Latin glaucōma, cataract, from Greek glaukōma, from glaukos, gray.]青光眼的定義一直在更新。早期，人們認為眼壓高，就是青光眼，後來發現了正常人也有高眼壓，而一部分眼壓正常的人們又有青光眼。所以看教科書上關於青光眼的定義隨著人們對這個疾病認識的提高而變化著。青光眼的共同特徵是視神經萎縮和視野缺損，病理性的眼壓升高是重要的危險因素之一。
n. - 綠內障, 青光眼