Constant fluid flow after an injury to the corner of the eye can be seen for a variety of reasons, usually due to corneal irritation that causes tears, or a corneal perforation that causes the contents of the eye to flow out. If the corner of the eye is slightly injured, such as a slight abrasion of the cornea, abnormal symptoms such as photophobia, pain, and loss of vision may occur, and the cornea is irritated causing tears to constantly flow. If the corner of the eye is severely injured, causing a perforation of the cornea, there may be a flow of fluid from the contents of the eye, such as aqueous humor, along with symptoms such as severe vision impairment, severe pain, and severe photophobia. Constant flow of fluid after corneal injury can also be seen for other reasons, and it is recommended to seek medical treatment in time to avoid delay.