| 释义 |
optic disc
noun[ C ]
anatomy specialized(alsooptic disk)uk /ˌɒp.tɪk ˈdɪsk/ us /ˌɑːp.tɪk ˈdɪsk/
a small area at the back of the eye where the optic nerve joins the back of the retina(= the area of the back of the eye that receives light and sends pictures to the brain):
The optic disc is nonpigmented and insensitive to light, and is also known as the blind spot.
Glaucoma is a group of eye diseases in which rising inner-eye pressure causes damaging changes to the optic disc.
If the optic disk looks suspicious for glaucoma, then we proceed with visual field testing.
The optic disk is usually easily recognizable as a yellowish, slightly oval structure.
Optic disc swelling was noted in 7 of 8 patients with unilateral vision loss.
SMART Vocabulary: related words and phrases
The eye & surrounding area
beadily
beetling
canthus
chiasm
chiasma
compound eye
eyeball
eyelid
glassy
limbus
macula
macula lutea
macular
monobrow
optic nerve
suborbital
superciliary
supraoptic
supraorbital
tear duct
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