Lissamine Green Strips SterileThese strips work by staining the cornea blue upon instillation. This causes "speckling" of the cornea, which gives the doctor immediate indication of any dry patches, as well as any muco deficient or damaged corneal cells. Most importantly, it does not sting the eye like Rose Bengal, and a white light or blue light can be used on the slit lamp during detection. Available as sterile strips in individual pouches. Box of 100 individually packed sterile