Laser surgery, YAG
The use of a laser to punch a hole in the iris, in order to relieve increased pressure within the eye. Yag laser surgery is an outpatient procedure that may be used, for example, to treat acute angle-closure glaucoma.
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- Laser-assisted in situ keratomileusis
A kind of laser eye surgery designed to change the shape of the cornea to eliminate or reduce the need for glasses and contact lenses in cases of severe myopia (nearsightedness). The procedure is best known as LASIK, an acronym for laser-assisted in situ keratomileusis. Before LASIK, the most common form of laser eye surgery […]
- LASIK
Abbreviation standing for laser-assisted in situ keratomileusis, a kind of laser eye surgery designed to change the shape of the cornea to eliminate or reduce the need for glasses and contact lenses in cases of severe myopia (nearsightedness). Before LASIK, the most common form of laser eye surgery was a treatment called PRK which involved […]
- Lassa fever
An acute viral infection found in the tropics, especially in West Africa. Lassa fever is caused by a single-stranded RNA virus that is animal borne (zoonotic). Lassa fever can cause a potentially fatal illness, is highly contagious, and can rapidly spread. The reservoir, or host, of the Lassa virus is a rodent known as the […]
- Lassa virus
Lassa fever; and Casals-Ariet, Jordi.
- Lassitude
Weakness, weariness, listlessness, exhaustion, lethargy. For example, the patient complained of lassitude. From Latin lassitudo, from lassus meaning weary.