Why is LASIK considered advantageous over PRK?

LASIK is often considered advantageous over PRK primarily because it offers earlier refractive stability. In the LASIK procedure, a flap is created in the cornea, allowing for quick healing and reduced inflammation. This means that patients typically experience improved vision shortly after surgery, often within a few hours or by the next day. In contrast, PRK involves the removal of the outer layer of the cornea, which must regenerate over a period of several days. This longer healing process can lead to a gradual improvement in vision rather than the immediate results seen with LASIK, making the latter a preferred choice for those seeking rapid visual recovery.

While the other options address aspects like cost-effectiveness, recovery time, and discomfort, they do not capture the specific advantage of refractive stability that LASIK provides immediately following the procedure. Thus, the swift return of clear vision is a significant factor in why many eye care professionals recommend LASIK for suitable candidates over PRK.