Laser eye surgery is a refractive surgery to correct vision errors, such as myopia, hyperopia or astigmatism, by reshaping the cornea. It is very common and popular eye surgery for its good functions, short-term recovery period, high success rate and low infections. Eyes are delicate so the incisions in eyes might probably leave the patients with some side effects. People might have blurry vision, eye halos or starbursts and eye dryness. But these symptoms are usually temporary and will go off as you healed. Headache is not a direct side effect from laser surgery. However, there are some possibilities of complication from this operation, for example flipped flap, cataracts, glaucoma, and retinal detachment and so on. Some of these eye conditions tend to be triggers of headaches. It is hard to tell whether your headache is from laser surgery complication or some other reasons. Eye strain, trauma in head, a cold or flu and so on can always causes headache too. To find out the underlying root, you still have to visit your surgeon and ophthalmologist, because these conditions can be serious and lead to vision loss.