Please choose the correct ending to complete the given sentence: Health: [header] How to heal a scratched cornea [title] Try blinking. [step] Sometimes scratches to the cornea are caused by small objects that get trapped beneath the eyelid, such as dust, dirt, sand or even an eyelash. Before you can start to treat the scratch, you must remove this foreign object.

Ending1: [substeps] Removing any debris from the surface can help prevent further damage to your cornea and allow healing time to take place. Once you remove all particles, your cornea will reshape and heal. Ending2: Try blinking several times in a row to remove the object. Closing and opening your eye can stimulate the lacrimal glands to produce more tears and wash the foreign body out of the eye. Ending3: This foreign object might be an eyelash, an eyelash stick, or an individual piece of jewelry. [substeps] Removing the object will reduce swelling, pain, redness and bruising. Ending4: [substeps] Start by quickly wiping the area with a clean, dry cloth. If the spot is fresh, the friction left by the rubbing will loosen the debris and discoloration.

Answer format: ending1/ending2/ending3/ending4