Can laser surgery be performed on both eyes?

Laser surgery is performed on both eyes on the same day with few exceptions.If we did one eye at a time,it would result in a gap in between when patients had one blurry and one clear eye & this can pose problems with working causing mashed strain & could be dangerous in terms of delivery & so we correct both eyes on the same day.we treat one eye at a time only when one eye requires treatment & other eye is well or patients with scarring of cornea & in which case therapeutic laser is done.