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单词 optic disc
释义

optic disc

noun Anatomy
The raised disc 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....
  • 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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更新时间:2024/12/23 16:54:20