Analgesic: Drug that relieves pain without Blocking nerve impulse conduction or markedly altering sensory function.

镇痛药: 可减轻疼痛而又不阻滞神经冲动的传导、不显著改变感觉器官功能的药物.

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Conclusion The conducting function of optic nerve and sensory function of macula lutea are lower.

结论CN患者的视神经传导功能与视网膜黄斑部感受机能较正常人降低.

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