either of the corners of the eye where the upper and lower eyelids meet
canthus详细解释
can.thus n.（名词）【复数】can.thi[-tho.] The angle formed by the meeting of the upper and lower eyelids at either side of the eye.眦，眼角：眼的两边由上下眼皮相合而形式的角 来源：Late Latin 后期拉丁语 from Greek kanthos 源自 希腊语 kanthos
