White micro bumps on the whites of the eyes may be blepharospasm, vesicular conjunctivitis, conjunctival cysts, pterygium, and other factors. 1. Blepharospasm: Blepharospasm may be caused by ultraviolet radiation, photochemical exposure, no special treatment is needed, as long as regular follow-up. Medical attention should be sought if necessary. 2. Vesicular conjunctivitis: In severe cases, vesicular conjunctivitis may cause discomfort such as foreign body sensation and redness of the eyes, and patients may feel that there are white microscopic bumps on the whites of their eyes. This disease is easy to recur, to enhance their own physical fitness. 3. Conjunctival cysts: Conjunctival cysts are related to lymphatic reflux disorders and are often manifested as transparent or white bumps. 4. Pterygium: a kind of fibrovascular tissue that grows toward the corneal surface and connects with the conjunctiva, often occurring in the nasal side of the eyelid fissure area. It is congested and hypertrophied in the progressive phase and grayish in the resting phase, i.e., white bumps. 5. Others: Pseudopterygium, conjunctival stones and conjunctival tumors can also appear as white bumps on the white of the eye. There are many reasons for white bumps on the whites of the eyes, so you should go to the hospital immediately for treatment under the guidance of a professional doctor.