The objective of laser correction is to achieve the best visual results in the safest possible way. The results are very impressive and the goal is always the independence from glasses and contact lenses and improved quality of life. Success is the achievement of plus / minus 0.50 diopter after surgery and this can be achieved a rate of almost 99%. Technology has made enormous leaps that today we are able to consider this surgery absolutely successful, reliable and very safe. In spite of the fact that no-one can guarantee patients "perfect" or 10/10 vision, most patients no longer require glasses or contact lenses for their activities. Glasses for night driving and reading may always be necessary, even when an excellent visual result has been achieved.
Many nearsighted people need to wear glasses for presbyopia after the age of 45 and this is something that should be discussed by the treating physician. The choice of monovision may be a solution to this problem. This technique involves the correction of the non-dominant eye to a lesser degree so that the residual myopia can help with near vision. Techniques such as multifocal lasik and presbylasik are less popular and time will prove their effectiveness.
There is always a small chance that an additional procedure will be required to fully correct the ametropia. The repairs are most likely when the patient has a very high refractive problem. Additional interventions should only be conducted when there is adequate healing and stability of the cornea.