Methods and systems for performing an ophthalmic surgical treatment procedure include one or more wicking members to secure a volume of treatment fluid to a distal end of a surgical instrument. Such a surgical instrument may include an elongate tubular member having a proximal end, a distal end, and a lumen extending therebetween, the elongate tubular member being configured to penetrate a body cavity of a patient. The instrument may further include a wicking member extending beyond the distal end of the elongate tubular member. The wicking member may be configured to secure a volume of treatment fluid delivered through the lumen to the wicking member for application from the wicking member to target tissue in the body cavity.