Definition of optic disk in English:

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optic disk

noun

(also optic disc) Anatomy
The raised disk on the retina at the point of entry of the optic nerve, lacking visual receptors and so creating a blind spot.
Example sentences
  • The optic disc marks the exit point of the retinal nerve fibres from the eye.
  • Symptoms include floaters and blurred vision caused by swelling of the optic disc and macular edema.
  • Visual acuities should be measured and the optic discs examined.
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