患者,男,53岁。因眼部不适,干涩,异物感于2010年1月20日到我院眼科门诊就诊,患者无药物过敏史。眼科检查:双眼上下睑正常,结膜正常,角膜透明,晶状体、玻璃体透明,眼底检查未见明显异常。眼压:右眼14 mmHg,左眼15mmHg,行泪液分泌实验结果为8 mm,故诊断为干眼症。咨询以往用药史,患者之前曾自行在家滴用ZnSO_4滴眼液,未 Patient, male, 53 years old. Due to eye discomfort, dryness, foreign body sensation in January 20, 2010 to our hospital ophthalmic clinic, patients with no history of drug allergy. Eye examination: the upper and lower eyelid normal, normal conjunctiva, corneal transparency, lens, vitreous, fundus examination showed no obvious abnormalities. Intraocular pressure: right eye 14 mmHg, left eye 15mmHg, line tear secretion test results for the 8 mm, so the diagnosis of dry eye syndrome. Consult the past medication history, the patient had their own drops at home before using ZnSO 4 eye drops, not