The conjunctiva is a thin, transparent membrane that surrounds the sclera of the eye and lines the inside of the eyelid. The cells of the conjunctiva produce a fluid similar to tears that lubricates the lids and the cornea making it easier to blink. Conjunctivitis, often called pink-eye, is a common infection of this area. Conjunctivitis can be bacterial or viral in nature. The infection causes the area to become red and irritated, hence the name 'pink-eye'. Research Conjunctiva