Definition of optic disk in English:

optic disk

(also optic disc)


  • The raised disk on the retina at the point of entry of the optic nerve, lacking visual receptors and so creating a blind spot.

    • ‘The optic disc marks the exit point of the retinal nerve fibres from the eye.’
    • ‘Visual acuities should be measured and the optic discs examined.’
    • ‘Symptoms include floaters and blurred vision caused by swelling of the optic disc and macular edema.’
    • ‘The optic disk is where all of the nerve fibers come together at the back of the eye.’
    • ‘The tumor did not involve the optic disc or nerve.’