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glaucomatous halo

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glaucomatous halo
n.
1. A yellowish ring surrounding the optic disk, indicating atrophy of the choroid in glaucoma.
2. A circle of illumination seen around lights, caused by corneal edema in glaucoma.
glaucomatous halo
[glôkom′ətəs]
1 an illusion of a circle of brightness surrounding a light, observed by patients with acute glaucoma, which is caused by edema of the corneal epithelium.
2 a yellowish white ring surrounding the optic disc, a sign of atrophy of the choroid in glaucoma.


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