A clear blister on the eyeball is usually associated with conjunctival lymphatic obstruction as well as follicular conjunctivitis and conjunctival cysts. 1. Conjunctival lymphatic obstruction: If the lymphatic channels of the conjunctiva are blocked, secretions cannot be discharged and may accumulate locally, gradually forming clear blisters. 2. Follicular conjunctivitis: usually associated with viral infection, when the virus repeatedly irritates the conjunctival tissue, follicular changes may form, resulting in clear blisters at the conjunctiva. 3. Conjunctival cyst: a benign swelling at the conjunctiva, usually related to trauma, inflammation and other factors, such as repeated irritation of the conjunctival tissue, affecting the secretion discharge, may cause retention, resulting in the formation of clear blisters. Regarding the growth of clear-like blisters on the eyeballs, you can observe them for 2~3 days first, and if the symptoms do not go away, you should consult a doctor in time.