A clear bump on the eyeball may be caused by the accumulation of lymphatic fluid in the conjunctiva due to impaired lymphatic reflux; it may also be a proliferative reaction of the eyelid fissure due to external stimulation; it may also be caused by the accumulation of secretions due to the large amount of secretions produced by the infection, and generally the small bump can fade away after the cause is removed.1. Conjunctival lymphatic cysts: blockage of the lymphatic vessels in the conjunctiva can cause a A small, transparent bump on the eye, which generally does not require special treatment. If the foreign body feels uncomfortable, you can go to the hospital to pick it and the bump will disappear after the lymphatic fluid flows out. Do not pick it out yourself as it can easily cause infection or rupture of the eye. 2. Lid fissure: Chronic hyperplasia can occur in the lid fissure area due to ultraviolet light, inflammation, and other factors that can cause foreign body sensation with long-term stimulation. Anti-inflammatory medications such as erythromycin and chlortetracycline can be used to apply the eye ointment, and the foreign body will usually disappear after the inflammation subsides. In stubborn cases, surgical removal of the lid patch can be performed under a microscope. 3. Acute catarrhal conjunctivitis: jelly-like and transparent bumps can be formed on the eye, which are generally considered to be secretions and can be treated with ice packs to improve the symptoms or anti-infective treatment with drugs such as aspirin, amoxicillin and cyclosporine. 4. Vesicular conjunctivitis: a delayed allergic reaction, mainly manifested by patients feeling foreign body sensation in the eye, more tearing, and congested nodular bumps on the conjunctiva. It can be treated with some antibiotic eye drops, corticosteroid eye drops and other drugs.