Star bursts and halos around the light following lasik surgery is commonly seen in post operative period. This usally disappears by 6 months and the severity decreases as the duration from the surgery increases.
These symptoms are more in night as the pupil size is larger in night leading to the entry of light from the border between the operated and non operated part of the cornea
Nothing to worry much as these symptoms do decrease by 6 months after surgery. PLease do attend regular followup as advised by your eye doctor.