Product Description Schirmer Tear Test strips are gauged for easy reading, helps in measuring the amount of tears produced by an eye. Your diagnosis for dry eye syndrome. The Mark Blu strips have a blue colour mark, making an ideal strip to be used by clinical assistants. Mark Blu 50RL : Schirmer Mark Blu Tear Test Strips are CE marked product in a Export worthy packing. Two strips i.e. marked left (L) and right(R) they are packed in a pouch and sterilized. Packing: Box of 50 pairs Sterile Strips Individually Packed