Yes, in some cases, vision can change after eye surgery.
While many types of eye surgery aim to provide long-lasting vision correction, it is possible for vision to degrade over time. According to information available, a phenomenon called regression can occur.
Understanding Regression
Regression is the term used when the eye partially reverts to its pre-surgery prescription. This means that some of the refractive error that was corrected during the surgery, such as nearsightedness, farsightedness, or astigmatism, can return to some degree.
- What Causes It? The primary reason cited for regression is changes in the cornea over time. The cornea is the clear front surface of the eye that is reshaped during common refractive surgeries like LASIK or PRK. If the cornea changes shape slightly in the years following surgery, it can affect how light is focused onto the retina, leading to a return of blurry vision.
It's important to note that the extent of regression can vary and doesn't happen to everyone. When it does occur, it may not always return vision to the level it was before surgery, but it can cause a noticeable decline from the post-surgery clarity.
