- Current medications. EXP-LP insertion - As detailed in the Investigator Brochure there will be 2 sizes of the EXP-LP medicated punctual plug: "big" and "small", stored and packed separately. The most suitable size will be pre-defined by the investigator performing the procedure and will be documented in the CRF. The patient will be offered to choose which of his eyes should have the PLUG inserted - limiting investigator bias. The selected eye will be documented in the CRF.