Patient: The patient is a 6-year-old boy who was hit by a slingshot stone in his left eye on March 23, 2008. But now the pupil of the hit eye is dilated and the vision is 0.8. I would like to ask whether this situation will affect the vision and whether the vision will return to normal. Sun Hua, Department of Ocular Trauma, Beijing Tongren Hospital: Some traumatic pupil dilatation can be restored after conservative treatment, but some do not, and no special treatment is needed as long as it does not affect vision. If there are no lesions in the image vision, crystal fundus, etc., and especially if you are afraid of light, you can wear sunglasses or special corneal contact lenses.