Corneal abrasion. Depends on where it is scratched and how severe. But if it is a corneal abrasion the treatment is to use an antibiotic drop to prevent infection, and also use lubricating tear drops or ointments to ease the discomfort while it heals. Depending on the size of the abrasion, a patch or contact lens may help with the confort and healing process. Some doctors recomend NSAID drops to help with the comfort.
Keep eye closed. Less blink- less pain.