Blisters in the eyes may be associated with conditions such as keratitis, conjunctivitis, and erysipelas. 1. Keratitis: If the patient has keratitis, there will be symptoms such as blurred vision, tearing, low vision, increased secretion, and redness and swelling of the eyes. If the secretion increases for a long period of time, it may gather together and look like there is a blister. 2. Conjunctivitis: Conjunctivitis patients may have conjunctival edema, resulting in blisters inside the eyes, which may also be accompanied by increased secretion and other symptoms. 3. Granuloma: If the patient’s eyes have secretions, due to various factors, there is no way to discharge normally will form granuloma, the appearance looks like a blister. Patients with blisters in the eyes should go to the ophthalmology department in time, strictly follow the doctor’s instructions for examination, diagnosis of the cause of the disease, and active treatment.