What is the membrane that lines the inner eyelid called?

The membrane that lines the inner eyelid is known as the palpebral conjunctiva. This thin, transparent tissue adheres to the internal surface of the eyelids and plays a crucial role in maintaining eye health. It helps to keep the eye moist by producing mucus and tears, as well as providing a barrier to protect the underlying tissues from dust, debris, and pathogens.

The palpebral conjunctiva is continuous with the bulbar conjunctiva, which covers the sclera (the white of the eye), thereby forming the conjunctival sac that can trap tears and other fluids. This connection also facilitates the movement of the eyelids over the surface of the eye during blinking, ensuring that the cornea remains moist and clear.

Understanding the function and location of the palpebral conjunctiva is important for recognizing and managing various ocular conditions, as well as in surgical procedures involving the eyelids.