An evaluation of visual outcomes of laser eye surgery
The most attractive benefit from laser eye surgery is permanent vision correction. This is also the reason why laser eye treatment options are gaining popularity these years. However, some patients are still wondering that this visual benefit is available for everyone.
A truth is that laser eye surgeries are safer, quicker and more effective due to technological advances and increased surgeon experience. But another fact is that laser eye surgery can not provide permanent vision correction in all cases. Some patients will receive unsatisfying outcomes and need further treatments. Although surgical technologies continue to advance, types of laser eye surgery can not guarantee every patient a perfect vision recovery.
Except for risks and complications associated with laser eye surgeries themselves, varying conditions of the patients also affect the surgical effectiveness. As the body ages, corneal tissue also changes over time. This process may force the effect of clear vision created by laser eye surgery to change as well. In short, perfect surgical visual effects can hardly maintain intact during the remaining of the life. In most patients, further surgical enhancements are needed at certain time.
In addition, the severity of vision problem to be corrected is also decisive for the patient to receive perfect visual outcome. Good candidates for LASIK and PRK are those with mild to moderate myopia, hyperopia or astigmatism in their 20s or 30s. Extremely nearsighted or farsighted people can not get good results from LASIK, LASEK, PRK and the like.
Patients with severe vision defects are harder to get perfect vision outcomes from laser eye surgery. They always need to consult a surgeon about more options of laser eye surgeries or other alternatives, in order to figure out a proper type. Other types of treatments include implantable lenses and permanent contact lenses and so on.

