白内障是我国主要的致盲眼病，白内障摘除联合人工晶状体植入术是白内障患者复明的主要有效手段，细菌性眼内炎是其最严重的并发症。目前，预防眼内炎主要依赖于抗生素的使用，而结膜囊的术前准备也受到越来越多术者的重视。本文就白内障术前结膜囊的准备现况进行总结分析，主要有以下两点：（1）术前结膜囊抗生素眼液的应用；（2）术前结膜囊的消毒、冲洗；在此，结膜囊冲洗液中提出使用温热生理盐水的观点。另外，已有术者提出术前睑板腺处理的必要性。

Cataract is the major cause of blindness in China, cataract extraction and intraocular lens implantation in cataract surgery is a main effective means for the cataract patients to restore vision, bacterial endophthalmitis is the most serious complication. Currently the prevention of endophthalmitis depends on the use of antibiotics, and conjunctival sac of the preoperative patients has also been paid more and more attention to. In this paper, status of the conjunctival sac preparation before cataract surgery are analyzed, mainly are the following two points: (1) application of preoperative antibiotic eye drops to conjunctival sac; (2) disinfection and flushing of preoperative conjunctival sac. Here，the use of warm saline in conjunctival sac flushing liquor is proposed. Moreover， the other surgeon have raised that preoperative treatment of meibomian gland is necessary.