Ideally, Lasik laser eye surgery is permanent, as it reshapes the cornea permanently, towards correction of vision conditions, such as astigmatism, farsightedness and nearsightedness and reduces dependency on the contact lens and eye glasses. So, practically, in most of the cases, Lasik surgery outcomes, such as improved vision is permanent.
In a very few cases, the problems of blurry vision, farsightedness, nearsightedness or other relative problems can occur, because of the changes occurring in the focussing lens of the eyes, no matter Lasik is performed or not.
What If Regression Occurs?
In case of any regression occurs because of any other changes within the eye, there is an option for the Lasik patients, called Lasik enhancement procedure and it can help to restore clear vision, for the patient. The probability of regression is different for both the genders. Average regression of vision is about -0.08 for men and -0.40 for women, after 18 years of age.
Studies and Reports
American Journal of Ophthalmology has studied the laser vision correction stability and permanence of Lasik after the surgery. It reported that approximately 6% of Lasik patients have got the need for Lasik enhancement procedure in 10 years duration after the surgery, because of myopic regression.
Vision Problems After Lasik
Coming to the practical results and general opinion of the Lasik patients, the benefits continue usually for more than 10 years. And because of the age and other factors, it is quite possible that poor eyesight and fading problems return. These problems are because of different causes.
The major cause for fading of eyesight and blurry vision is because of the age, most commonly. The general prescription of the Lasik patient can be changed after long time of the surgery. If the problem occurs because of the same refractive errors, additional level of correction is possible to achieve complete outcomes of the surgery.
There are many other causes also result in poor vision and blurry vision. Other important reason is age related problem, called presbyopia, which is decreased capability of natural focussing lens of the eye. It is no way related with the Lasik treatment and its surgical site, which is cornea. And one more important concern is the lifestyle that can fade away the natural capability of the eye vision. Less day to day care for the eyes and more severe eye straining activities can deteriorate the natural capability of eyes to provide clear vision.
Lasik as Permanent Solution
At least Lasik patient can expect that Lasik stands as a permanent solution to the vision problems that exist by then. And the Lasik procedure removes the tissue over the cornea to amend the underlying vision issues. It is theoretically and practically a permanent solution. The other eye problems are usually caused from other sources, not from the cornea, which is operated during the Lasik surgery.