Subconjunctival Hemorrhage occurs suddenly and without warning.
Blood is trapped between the clear conjunctival tissue and the white scleral tissue below.
It is painless, and generally clears in ten to fourteen days. Causes of this type of hemorrhage are usually unknown. Subconjunctival Hemorrhage GPC Giant Papillary Conjunctivitis or GPC is an inflammation of the inside lining of the upper eyelid. It is usually caused by wearing an old or dirty contact lens. However, it can also be caused by an exposed suture following eye surgery.