Recurrent Erosion Syndrome is characterised by recurrent epithelial breakdown due to weak adhesions. Symtoms can vary between sudden onset of sharp pain or foreign body sensation early in the morning (when opening the eyelids) and blurred vision. The cause can either be trauma (e.g. fingernail etc.) or in presence of corneal Dystrophies (eg. Map-Dot-Fingerprint-Dystrophy). Symptoms can last from seconds to hours. The adhesions are usually weak for several weeks and can be disrupted especially with sudden eye opening in the morning. Usually this is very painful.