If the stone is protruding from the conjunctival surface causing conjunctival congestion, foreign body sensation, i.e. grinding, or even causing corneal abrasion, it should be removed with a foreign body removal needle after applying surface anesthetic promethazine drops, and antibiotic eye drops such as levofloxacin eye drops and diclofenac sodium eye drops should be applied after removal. If the stone is small and not yet protruding from the conjunctival surface, or even if it is deeply buried, no treatment is needed and regular review is required. Conjunctival stones can grow in the conjunctiva of both the upper and lower lids. They are yellow or white granules on the surface of the conjunctiva of the upper and lower lids and are caused by the agglomeration of detached conjunctival epithelial cells and degenerated white blood cells.