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球结膜下注射是眼科常用的治疗方法。有人为了减轻注射时病人的痛苦,喜欢在用抗生素或其它对组织刺激性较强的药物结膜下注射时,加用少量2%普鲁卡因注射液。虽有一定镇痛效果,但易引起结膜水肿、结膜下出血、局部组织过敏乃至出现全身过敏等不良反应,并能使药物吸收迟缓。因普鲁卡因穿透组织的能力差,不易被结膜吸收,且对注射部位血管有扩张作用。此外某些药物
Subconjunctival injection is a commonly used method of ophthalmology. Some people in order to reduce the pain of patients when injected, like to use antibiotics or other strong irritant tissue drugs subconjunctival injection, plus a small amount of 2% procaine injection. Although a certain analgesic effect, but easy to cause conjunctival edema, subconjunctival hemorrhage, local tissue allergies and even systemic allergies and other adverse reactions, and make the drug absorbed slowly. Due to the poor ability of procaine penetrating tissue, not easily absorbed by the conjunctiva, and the role of the blood vessels at the injection site expansion. In addition some of the drugs