The white of the eye is clinically referred to as the bulbar conjunctiva. Raised blisters on the white of the eye may be caused by physiological hyperplasia of the bulbar conjunctiva or pathological causes such as bulbar conjunctival edema and conjunctival lymphatic fluid cysts. In addition to yellowish-white, blister-like or granular irregular raised changes on the bulbar conjunctiva, there may also be pain in the eyes, foreign body sensation and other pharyngeal discomfort. Whether the cause is physiological or pathological, it needs to be dealt with according to the specific cause. I. Physiologic causes Older adults have symptoms of raised blisters on the whites of the eyes due to conjunctival elastic fiber hyperplasia, subepithelial connective tissue vitreous degeneration, and reduced conjunctival elasticity that can easily crack, an age-related change called lid fissures. Generally, no special treatment is needed, but when the bulge thickens significantly or affects aesthetics, it can be removed through eye surgery. Pathological causes1. Bulbar conjunctival edema: This occurs for a number of reasons, including incomplete eyelid closure, eye allergies, local soft tissue edema from surgery and poor lymphatic reflux, and may be accompanied by discomfort such as redness on the surface of the eye, dry eyes, and swelling. When bulbar conjunctival edema occurs, anti-inflammatory treatment such as levofloxacin drops can be given, and wet towels can be used to reduce the edema. If the conjunctival edema does not heal for a long time or if the symptoms are severe, surgical treatment such as lid margin suturing and conjunctival folding suturing may be required. 2. Conjunctival lymphatic fluid cysts: Blockage of the tiny blood vessels in the conjunctiva of the eye, resulting in long-term obstruction of lymphatic fluid return and lymphatic fluid accumulation in the eye, may cause conjunctival lymphatic fluid cysts, which are usually not accompanied by other discomfort. For patients with small cysts and no uncomfortable symptoms, no special treatment can be done. However, for larger cysts that affect eye closure or aesthetics, the cysts need to be surgically removed and the cyst wall needs to be completely cleared to prevent recurrence; 3. Vesicular conjunctivitis: more common in eye diseases, usually associated with a delayed metamorphic reaction of the conjunctival epithelium to microorganisms, the combined effect of various allergens causes a raised blister to appear in the white of the eye, which is closer to the cornea and can be accompanied by intraocular foreign body sensation, tearing, photophobia The blisters may be accompanied by foreign body sensation, tearing, photophobia, optic papillomegaly, etc. Treatment is based on topical acyclovir and other antiviral eye drops, together with a small amount of dexamethasone eye drops and other hormonal drugs, and supplemented with appropriate amounts of vitamin therapy. After the viral infection subsides, the blister bulge will also subside. The above measures can significantly increase the rate of regression of raised blisters on the whites of the eyes and can significantly inhibit the progression of eye discomfort. When a raised blister appears on the white of the eye, try not to handle it without permission, but use medication under the guidance of a doctor to avoid delaying or aggravating the condition. After the bulging blister subsides, you should also strengthen eye care and develop good hygienic eye habits to avoid re-infection and recurrence of the disease.