例1,李××,男,28岁,农民。于1989年5月24日晚饭后,全身不适,头疼,头晕,恶心,曾服“去痛片”无明显效果。25日上午5时许,双眼胀疼,压迫感,视物不清。来诊。 查体,一般情况尚可。眼科检查:远视力右0.8,左0.9,近视力皆1.2,眼睑、结膜正常,瞳孔2—3mm,双侧等大,对光反应迟纯。眼底 除双眼中央静脉轻度扩张外,其他正常。实验室检查:血常规正常。血液胆碱脂酶活力测定60％(溴 Example 1, Lee × ×, male, 28 years old, farmer. After supper on May 24, 1989, the whole body was not feeling well, had a headache, dizziness and nausea. At 5 o’clock on the 25th, both eyes pain, pressure, blurred vision. Consultation. Physical examination, the general situation is acceptable. Eye examination: far right vision 0.8, left 0.9, near vision is 1.2, normal eyelid, conjunctiva, pupil 2-3mm, bilateral and other large, slow reaction to light. In addition to the fundus of both eyes slightly dilated central vein, the other normal. Laboratory tests: normal blood. Blood cholinesterase activity was determined 60% (bromine