The burning sensation in the eyes is mostly considered to be caused by foreign bodies in the eyes, conjunctivitis, dry eye, blepharitis and other conditions. 1. Foreign body in the eye: when a foreign body enters the eye accidentally, it will stimulate the mucous membrane of the eye to make the local blood vessels of the eye congested, which will make the eye have a burning sensation, pain and so on. 2. Conjunctivitis: external stimuli, allergic reactions and microorganisms can make the conjunctiva of the eye congestion, edema, and then make the eye burning sensation, pain, increased secretion and so on. 3. Dry eye: due to excessive evaporation or insufficient secretion of tears, the tear film is unstable and the surface of the eye is damaged, which may cause burning sensation, dryness, photophobia, pain and other conditions of the eyes. 4. Blepharitis: Bacteria, seborrheic dermatitis can cause chronic inflammation of the eyelid margin skin, hair follicles and their glands, and clinically manifested as burning sensation, dry itching, tingling, and increased secretion in the eyes. When the eyes have a burning sensation, should promptly go to the eye hospital examination to clarify the cause of the disease, under the guidance of the doctor for targeted treatment.