A: Post-healing, laser vision correction results are permanent. But laser eye surgery does not protect against natural vision changes that occur post-surgery. Vision may change unrelated to the laser treatment. LASIK and PRK do not interfere with the natural lens and thus do not affect visual conditions developed due to lens aging. Instead, Refractive Lens Exchange is recommended to eliminate such conditions. Therefore, depending on the vision change’s cause, retreatment may be a viable solution, while other treatment options also exist.