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Glite Dictionary
optic disk

optic disk

1 7.1
A round area at the back of the eye where the optic nerve enters and has no light-sensing cells
  • noun
  • /ˈɑptɪk dɪsk/
  • Specialized
translation icon : disco óptico
  • Other factors, such as retinal vessel closure and neovascularisation, either subretinally on the optic disc or peripherally, need to be identified since they may require different therapeutic measures.
  • optic disk area

Examples

  • These ophthalmologic signs include color vision changes, optic disc pallor, papilledema, and a decrease in venous pulsations.

    Academic text (2002)

  • One month later, his visual acuities had not changed, but a new focus of HCMV retinitis was found in the superotemporal region of his right eye and a new lesion at his left optic disc.

    Academic text (1995)

  • At 5 months, his vision deteriorated, and at 6 months, his vision was reduced to counting fingers in both eyes due to optic disc involvement.

    Academic text (1995)

  • This was accompanied by extensive optic disc involvement leading to blindness in both eyes (Figure 2g and h).

    Academic text (1995)

  • Mutations in EFEMP1 are involved in decreasing the optic disc area (186).

    Academic text (2018)

  • The optic disk is the point on the retina where the optic nerve enters the eye, creating a blind spot.

  • Optometrists often assess the health of the optic disk during eye exams to check for any abnormalities.

  • During the examination, the doctor noted that the optic disk appeared normal and free from swelling.

Synonyms

blind spot
vsoptic disk
  • Specialized
1 4.8

A small area in the eye where the optic nerve enters and you cannot see

is the same anatomical spot but expressed as the technical term

Surface Forms

optic disk singular
optic disks plural

Morphology

optic + disk

The noun-noun compound is directly compositional: 'optic' (relating to the eye/vision) combined with 'disk' (a round plate/area) yields a round area related to the eye. This follows a common and predictable English formation pattern (and similar constructions exist in other languages), so a B1 learner who knows both constituents can infer the basic meaning.

Etymology

The noun optic disk names a small round spot in the eye: optic means eye and disk means a round spot where the nerve that carries sight leaves the eye. That place has no light-sensing cells, so it creates a 'blind spot' in our vision.