What are the treatment principles for corneal foreign bodies?

Corneal foreign body treatment principle is based on the size of the foreign body, the depth of the invasion site to consider the treatment method, as follows:

For small foreign body, in the shallow layer of the cornea foreign body, usually can be washed with water, can also be removed under surface anesthesia with saline cotton swab. If there is a large foreign body or multiple foreign bodies, deep invasion site can consider sterile injection needle removal, corneal foreign body removal, etc., pay attention to eye hygiene after surgery, use levofloxacin eye drops, sodium hyaluronate eye drops, etc. to reduce the occurrence of eye inflammation.