例１，男，１１岁。以双眼剧痒、红、肿半小时就诊。询问病史：患儿半小时前曾食用海虾，发病前未曾用任何药物，否认眼部曾接触易过敏物质。体检未见异常，眼部检查：双眼视力１．０，双眼睑轻度发红、水肿，双眼结膜轻度充血、高度水肿。双眼巩膜、角膜、前房、眼底、眼压均 Example 1, male, 11 years old. Eyes itching, red, swollen half an hour treatment. History: Children with shrimp half an hour before eating, before the onset of any drug, deny that the eye had been exposed to allergic substances. No abnormal physical examination, eye examination: binocular vision 1.0, double eyelid mild redness, edema, conjunctival mild congestion, high degree of edema. Eyes sclera, cornea, anterior chamber, fundus, intraocular pressure are