An evaluation of visual outcomes of laser eye surgery
Article Tags: laser eye surgery
The most attractive benefit from laser eye surgery is permanent vision correction. Most users of prescription eyeglasses and contact lenses know clearly that these devices only bring temporary vision aid. When the lenses are removed, their eyesight will become blurry again. Permanent vision correction or long-term clear vision is the reason why laser eye treatment options are gaining popularity in recent years. However, some patients are still wondering that this visual benefit is equally achievable for everyone. Laser eye surgeries like LASIK are not 100% safe and some patients will unfortunately receive imperfect visual outcomes.
Not all patients can get satisfied permanent vision correction
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 treatment. Although surgical technologies continue to advance, types of laser eye surgery can not guarantee every patient a perfect vision recovery. The worst case is over-correction, which means excessive corneal tissues are cut. This situation is even beyond the control of a remedy.
Personal health condition may affect long-term surgical effectiveness
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.
The severity of vision problem is quite decisive to visual outcome
In addition, the severity of vision problem to be corrected is also decisive for the patient to receive a 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. In fact, the latter group of patients will usually be dissuaded from receiving any laser eye surgery. They are much less likely to get an expected visual outcome.
Other surgical solutions for people with very poor eyesight
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 treatment include implantable lenses and permanent contact lenses and so on.
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