A broken cornea is the occurrence of corneal injury, most commonly corneal epithelial detachment, often caused by ocular trauma, which can manifest as strong foreign body sensation, stinging pain, photophobia, tearing and eyelid spasm, examination with mixed conjunctival congestion and corneal epithelial detachment, which can be treated with Bevosol eye drops to promote corneal repair and levofloxacin ophthalmic gel to prevent corneal infection, with symptoms reduced or healed after 24 hours. There is also a case of corneal penetration injury, when there is a significant loss of vision, which must be cleared and sutured in the operating room under an operating microscope.