When Will Your Vision Start To Improve After Vision Correction Surgery?

When Will Your Vision Start To Improve After Vision Correction Surgery?

After LASIK or SMILE surgery, your vision is generally decent even right after the procedure. However, it may still be difficult to see small text clearly. For the first six hours after LASIK or SMILE, some discomfort is normal, but after that, you’ll likely start to notice your vision improving significantly.

Most patients reach their target vision about a month after LASIK or SMILE surgery.

LASEK is a bit different. On the first day, you may be surprised at how well you can see. But after about three days, your corneal epithelium begins to regenerate, which causes your vision to decline compared to right after the surgery.

On the third day, as the epithelium covers the center of the cornea, your vision declines. By the fifth day, vision usually starts improving again. Around the seventh day, you’ll likely return to the clinic to have the protective lens removed. Once the lens is removed, vision often drops again briefly, as the corneal surface becomes irregular.

However, your vision will begin to improve again shortly after. It’s important to understand that vision after LASEK tends to fluctuate. Typically, by the end of the first week, vision may reach around 0.7–0.8. Target vision—around 1.0 to 1.2—is usually achieved within two to three weeks.

Why Doesn’t Your Vision Immediately Reach The Target Level After Vision Correction Surgery?

In SMILE surgery, the laser separates corneal tissue within the middle layer of the cornea. After the tissue is removed, a slight corneal haze may occur immediately following the procedure. Under a microscope, you can sometimes observe mild swelling above and below the area where the laser passed. This temporary haze and swelling can affect visual clarity, but as the cornea heals over time, your vision gradually improves.

In contrast, LASEK surgery involves removing the outermost layer of the cornea. For your vision to improve, that surface needs to become smooth again. During the healing process, temporary astigmatism may also occur. It typically lasts for about two to three months.

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