If available, apply a few drops of aqueous topical ophthalmic anesthetic solution to the eyes (proparacaine hydrochloride 0.5%). Do not delay treatment if ophthalmic anesthetic solution is not readily available.

• 如果有的话，滴几滴局部眼部麻醉剂的水溶液到眼睛里。如果眼部麻醉剂溶液不容易得到，不要延误治疗。