- scleral ring
- a white ring seen adjacent to the optic disk in ophthalmoscopy when the retinal pigment epithelium and choroid do not extend to the disk.
Medical dictionary. 2011.
Medical dictionary. 2011.
ring — 1. A circular band surrounding a wide central opening; a r. shaped or circular structure surrounding an opening or level area. SYN: anulus [TA]. 2. The closed ( i.e., endless) chain of atoms in a cyclic compound; commonly used for “cyclic” or… … Medical dictionary
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halo — 1. A reddish yellow ring surrounding the optic disk, due to a widening of the scleral ring making the deeper structures visible. 2. An annular flare of light surrounding a luminous body or a depigmented ring around a … Medical dictionary
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