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Tyndall phenomenon observed in the fluid of the anterior chamber of the eye.
During slit lamp examination of the eye, an abnormal appearance of the beam of light as it travels through the anterior chamber. The flare is caused by light reflecting off proteins in the aqueous humor. It is found in patients with inflammation in the anterior chamber.
Scattering of light seen when a slit-lamp beam is directed, obliquely to the plane of the iris, into the anterior chamber. It occurs as a result of increased protein content, and usually inflammatory cells, in the aqueous humour. Visual impairment depends on the intensity of the flare. It is a sign of intraocular inflammation. See Tyndall effect; iritis; uveitis.
watery; prepared with water.
see blood-aqueous barrier.
turbidity of the aqueous humor caused by increased protein levels and cells.
the fluid produced by the ciliary process in the eye and occupying the anterior and posterior chambers. It provides nourishment for the lens and cornea and maintains the ocular pressure, and hence the optical integrity of the eyeball. Disturbance of its drainage through the corneoiridial angle can induce glaucoma and other disorders.
see ciliovitreolenticular block.
aqueous humor with a protein concentration approaching that of plasma; seen in inflammation or other disruption of the blood-aqueous barrier.
a mixture of insoluble particles in water.