There's a white particle in his eye.

White granules in the eyes are mostly conjunctival stones, more common in patients with chronic eye diseases such as trachoma and chronic conjunctivitis. They mainly appear on the palpebral conjunctiva surface, which are hard yellow-white point-like protrusions. They are mostly formed by the coagulation of exfoliated epithelial cells and denatured white blood cells. They can be scattered in spots or densely clustered. The initial position is deep, buried under the conjunctiva, generally without conscious symptoms, and gradually exposed on the conjunctiva surface. When the stone protrudes from the conjunctiva surface, there will be foreign body sensation, even causing corneal abrasion. In this case, it can be removed with a sharp knife or foreign body needle under surface anesthesia. If there is no irritation symptom, it may not be treated.