{"id":134148,"date":"2026-09-21T12:59:09","date_gmt":"2026-09-21T09:59:09","guid":{"rendered":"https:\/\/avicennaint.com\/?p=134148"},"modified":"2026-09-23T19:11:06","modified_gmt":"2026-09-23T16:11:06","slug":"lasik-vs-prk","status":"publish","type":"post","link":"https:\/\/avicennaint.com\/en\/lasik-vs-prk\/","title":{"rendered":"LASIK vs. PRK: What\u2019s the Difference in Laser Eye Surgery?"},"content":{"rendered":"\n

LASIK and PRK<\/strong> are both laser eye procedures<\/a> used to correct refractive errors such as myopia, hyperopia and astigmatism. When comparing LASIK vs PRK, both reshape the cornea so that light can focus more accurately inside the eye, but they reach the treatment area differently.<\/p>\n\n\n\n

The main difference is the corneal flap<\/strong>. LASIK creates a thin flap before the cornea is reshaped, while PRK does not. In PRK, the surface epithelial layer is removed and allowed to regenerate during healing. This affects early recovery, discomfort and some of the clinical factors considered when choosing between the procedures.<\/p>\n\n\n\n

Neither technique is universally better. The appropriate procedure depends on corneal thickness and shape, prescription stability, dry-eye status, eye health, lifestyle and the amount of correction required.<\/p>\n\n\n\n

LASIK vs PRK: Quick Answer<\/h2>\n\n\n\n

The main difference between LASIK and PRK is how the cornea is accessed. LASIK creates a corneal flap before laser reshaping, whereas PRK removes the surface epithelium and does not create a flap. Early visual recovery is generally faster and discomfort is usually lower after LASIK. PRK may be considered in selected patients because of corneal anatomy, dry-eye concerns, lifestyle or risk of eye trauma. Neither procedure is universally better; the choice depends on detailed corneal measurements and a complete eye examination.<\/strong><\/p>\n\n\n\n

Avicenna International Hospital\u2019s Eye Center<\/a> in Istanbul currently offers refractive-laser options including Femto LASIK (i-LASIK), PRK-LASEK and No-Touch Laser<\/strong>.<\/p>\n\n\n\n

LASIK vs PRK: Key Differences<\/h2>\n\n\n\n
Feature<\/th>LASIK<\/th>PRK<\/th><\/tr><\/thead>
Corneal flap<\/td>Yes<\/td>No<\/td><\/tr>
Surface epithelium<\/td>Flap created above treatment area<\/td>Removed and allowed to regenerate<\/td><\/tr>
Corneal reshaping<\/td>Excimer laser<\/td>Excimer laser<\/td><\/tr>
Early visual recovery<\/td>Generally faster<\/td>Generally slower<\/td><\/tr>
Early discomfort<\/td>Usually less<\/td>Usually more noticeable<\/td><\/tr>
Flap-related complications<\/td>Possible<\/td>No flap-related complications<\/td><\/tr>
Thin-cornea considerations<\/td>Requires sufficient tissue for planned treatment<\/td>May be considered in selected patients<\/td><\/tr>
Contact-sport considerations<\/td>Flap remains relevant<\/td>No permanent corneal flap<\/td><\/tr>
Bandage contact lens<\/td>Usually not required for surface healing<\/td>Commonly used while epithelium heals<\/td><\/tr>
Main objective<\/td>Refractive correction<\/td>Refractive correction<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

The procedures have similar goals. The main distinction is how the cornea is accessed before laser reshaping.<\/p>\n\n\n\n

What Is LASIK?<\/h2>\n\n\n\n

LASIK stands for laser-assisted in situ keratomileusis<\/strong>.<\/p>\n\n\n\n

It is a refractive-surgery technique that changes the shape of the cornea to correct focusing errors.<\/p>\n\n\n\n

During LASIK, a thin flap is created in the cornea. The flap is lifted, and an excimer laser reshapes the underlying corneal tissue according to the planned refractive correction. The flap is then returned to its original position.<\/p>\n\n\n\n

With Femto LASIK<\/strong>, a femtosecond laser is used to create the flap rather than a mechanical blade.<\/p>\n\n\n\n

What Is PRK?<\/h2>\n\n\n\n

PRK stands for photorefractive keratectomy<\/strong>.<\/p>\n\n\n\n

Like LASIK, PRK uses an excimer laser to reshape the cornea, but it does not create a corneal flap.<\/p>\n\n\n\n

Instead, the epithelial layer covering the front surface of the cornea is removed before laser treatment.<\/p>\n\n\n\n

Afterwards, the epithelium regenerates naturally. A temporary bandage contact lens is commonly placed over the eye while this surface heals.<\/p>\n\n\n\n

Because the epithelial layer has to regrow, early recovery after PRK is generally slower than after LASIK.<\/p>\n\n\n\n

What Vision Problems Can LASIK and PRK Correct?<\/h2>\n\n\n\n

LASIK and PRK may be used to treat refractive errors including:<\/p>\n\n\n\n

    \n
  • Myopia, or nearsightedness<\/li>\n\n\n\n
  • Hyperopia, or farsightedness, in suitable patients<\/li>\n\n\n\n
  • Astigmatism<\/li>\n<\/ul>\n\n\n\n

    Eligibility cannot be determined from the glasses prescription alone.<\/p>\n\n\n\n

    The ophthalmologist also needs to assess:<\/p>\n\n\n\n

      \n
    • Corneal thickness<\/li>\n\n\n\n
    • Corneal shape<\/li>\n\n\n\n
    • Prescription stability<\/li>\n\n\n\n
    • Tear-film condition<\/li>\n\n\n\n
    • General eye health<\/li>\n\n\n\n
    • Amount of corneal reshaping required<\/li>\n<\/ul>\n\n\n\n

      The objective is usually to reduce dependence on glasses or contact lenses rather than guarantee permanent freedom from corrective lenses.<\/p>\n\n\n\n

      What Is the Main Difference Between LASIK and PRK?<\/h2>\n\n\n\n

      The main difference is whether a corneal flap is created.<\/p>\n\n\n\n

      LASIK<\/h3>\n\n\n\n

      A thin flap is made and lifted. Laser treatment is applied to the underlying corneal tissue, and the flap is then repositioned.<\/p>\n\n\n\n

      PRK<\/h3>\n\n\n\n

      No flap is created. The epithelial surface is removed, the underlying cornea is reshaped, and the epithelial layer regenerates during healing.<\/p>\n\n\n\n

      This difference explains much of the variation in recovery, discomfort and flap-related considerations between the two procedures.<\/p>\n\n\n\n

      Which Has Faster Recovery: LASIK or PRK?<\/h2>\n\n\n\n

      LASIK generally provides faster early visual recovery.<\/p>\n\n\n\n

      Because the corneal surface does not have to regenerate in the same way as it does after PRK, vision may improve relatively quickly after LASIK.<\/p>\n\n\n\n

      After PRK, vision can remain blurred or fluctuate during the early healing period while the epithelial surface closes.<\/p>\n\n\n\n

      A bandage contact lens is commonly used for the first several days after PRK. Visual improvement then continues as the cornea heals and stabilises.<\/p>\n\n\n\n

      Faster early recovery does not automatically mean that LASIK provides a better long-term visual result.<\/p>\n\n\n\n

      Is PRK More Painful Than LASIK?<\/h2>\n\n\n\n

      PRK generally causes more discomfort during the first stage of healing.<\/p>\n\n\n\n

      Early symptoms can include:<\/p>\n\n\n\n

        \n
      • Burning or stinging<\/li>\n\n\n\n
      • Foreign-body sensation<\/li>\n\n\n\n
      • Light sensitivity<\/li>\n\n\n\n
      • Watering<\/li>\n\n\n\n
      • Eye discomfort<\/li>\n\n\n\n
      • Blurred or fluctuating vision<\/li>\n<\/ul>\n\n\n\n

        These symptoms occur because the corneal epithelium has been removed and needs to regenerate.<\/p>\n\n\n\n

        LASIK can also cause dryness, irritation or discomfort, but early discomfort is usually less pronounced.<\/p>\n\n\n\n

        Individual experiences vary.<\/p>\n\n\n\n

        Is PRK Better for Thin Corneas?<\/h2>\n\n\n\n

        PRK may be considered in some patients with relatively thin corneas because it does not require creation of a LASIK flap.<\/p>\n\n\n\n

        However, this does not<\/strong> mean that everyone with a thin cornea is suitable for PRK.<\/p>\n\n\n\n

        Corneal thickness needs to be assessed together with:<\/p>\n\n\n\n

          \n
        • Corneal shape<\/li>\n\n\n\n
        • Corneal topography or tomography<\/li>\n\n\n\n
        • Refractive prescription<\/li>\n\n\n\n
        • Amount of correction required<\/li>\n\n\n\n
        • Expected remaining corneal tissue<\/li>\n\n\n\n
        • Evidence of corneal stability<\/li>\n<\/ul>\n\n\n\n

          A structurally unsuitable cornea should not simply be treated with PRK instead of LASIK.<\/p>\n\n\n\n

          Why Is Corneal Mapping Important Before Laser Eye Surgery?<\/h2>\n\n\n\n

          An eye can look healthy during a basic examination while still having corneal characteristics that make laser reshaping unsuitable.<\/p>\n\n\n\n

          Corneal mapping helps assess the shape, curvature and structural characteristics of the cornea.<\/p>\n\n\n\n

          This is particularly important when looking for:<\/p>\n\n\n\n

            \n
          • Keratoconus<\/li>\n\n\n\n
          • Irregular corneal shape<\/li>\n\n\n\n
          • Insufficient corneal thickness<\/li>\n\n\n\n
          • Other features suggesting corneal instability<\/li>\n<\/ul>\n\n\n\n

            The choice between LASIK, PRK or no corneal laser procedure should therefore be based on measured corneal anatomy rather than prescription alone.<\/p>\n\n\n\n

            What About Keratoconus?<\/h2>\n\n\n\n

            Keratoconus is a condition in which the cornea becomes progressively thinner and changes shape.<\/p>\n\n\n\n

            It is an important consideration before refractive surgery because laser reshaping of an unstable cornea can create serious problems.<\/p>\n\n\n\n

            Patients with suspected keratoconus or other signs of corneal instability require appropriate ophthalmic assessment.<\/p>\n\n\n\n

            Being unsuitable for LASIK because of corneal instability does not automatically mean that PRK is an appropriate alternative.<\/p>\n\n\n\n

            Is PRK Better for Dry Eyes?<\/h2>\n\n\n\n

            PRK may be considered for some patients when dry-eye concerns make LASIK less desirable.<\/p>\n\n\n\n

            LASIK can temporarily worsen dry-eye symptoms in some people, so pre-existing dry eye should be identified and assessed before treatment.<\/p>\n\n\n\n

            PRK avoids creation of a LASIK flap but does not eliminate the possibility of postoperative dryness or ocular-surface symptoms.<\/p>\n\n\n\n

            Patients with significant dry-eye disease may need treatment of the ocular surface before either procedure is considered.<\/p>\n\n\n\n

            LASIK vs PRK for Contact Sports<\/h2>\n\n\n\n

            Lifestyle can influence the choice between LASIK and PRK.<\/p>\n\n\n\n

            LASIK creates a corneal flap. Although the flap heals, its presence remains relevant when there is a substantial risk of direct trauma to the eye.<\/p>\n\n\n\n

            PRK does not create a permanent flap.<\/p>\n\n\n\n

            For this reason, PRK may be considered for some people involved in contact sports, combat sports or occupations where eye trauma is more likely.<\/p>\n\n\n\n

            This does not mean that every athlete should choose PRK. Corneal anatomy and other clinical findings remain essential.<\/p>\n\n\n\n

            Does PRK Give Better Vision Than LASIK?<\/h2>\n\n\n\n

            Neither procedure is inherently superior for every patient.<\/p>\n\n\n\n

            Both LASIK and PRK aim to correct refractive error by reshaping the cornea.<\/p>\n\n\n\n

            In appropriately selected patients, both can provide effective refractive correction.<\/p>\n\n\n\n

            The more important differences involve:<\/p>\n\n\n\n

              \n
            • Surgical technique<\/li>\n\n\n\n
            • Early recovery<\/li>\n\n\n\n
            • Early discomfort<\/li>\n\n\n\n
            • Flap-related considerations<\/li>\n\n\n\n
            • Corneal anatomy<\/li>\n\n\n\n
            • Patient selection<\/li>\n<\/ul>\n\n\n\n

              The relevant question is not simply which procedure produces better vision, but which technique is more appropriate for the individual eye.<\/p>\n\n\n\n

              Can LASIK or PRK Guarantee 20\/20 Vision?<\/h2>\n\n\n\n

              No.<\/p>\n\n\n\n

              Neither LASIK nor PRK should be presented as a guarantee of 20\/20 vision or permanent freedom from glasses.<\/p>\n\n\n\n

              Possible outcomes include:<\/p>\n\n\n\n

                \n
              • Good uncorrected vision<\/li>\n\n\n\n
              • Reduced dependence on glasses<\/li>\n\n\n\n
              • Residual refractive error<\/li>\n\n\n\n
              • Under-correction<\/li>\n\n\n\n
              • Over-correction<\/li>\n\n\n\n
              • Continued need for glasses for certain activities<\/li>\n\n\n\n
              • Further treatment in selected cases<\/li>\n<\/ul>\n\n\n\n

                Age-related changes can also affect vision later, regardless of how successful the original procedure was.<\/p>\n\n\n\n

                What Is Presbyopia and Why Does It Matter?<\/h2>\n\n\n\n

                Presbyopia is the gradual loss of the eye’s ability to focus on near objects with age.<\/p>\n\n\n\n

                It is mainly caused by changes in the natural lens inside the eye rather than the cornea.<\/p>\n\n\n\n

                Successful LASIK or PRK for distance vision therefore does not prevent future presbyopia.<\/p>\n\n\n\n

                A patient may have good distance vision after laser treatment but still require reading glasses later.<\/p>\n\n\n\n

                This is particularly relevant for patients approaching the age when presbyopia commonly becomes noticeable.<\/p>\n\n\n\n

                What Happens Before LASIK or PRK?<\/h2>\n\n\n\n

                A detailed eye examination is required before refractive laser surgery.<\/p>\n\n\n\n

                Assessment may include:<\/p>\n\n\n\n

                  \n
                • Current glasses or contact-lens prescription<\/li>\n\n\n\n
                • Stability of the prescription<\/li>\n\n\n\n
                • Corneal thickness<\/li>\n\n\n\n
                • Corneal shape<\/li>\n\n\n\n
                • Corneal topography or tomography<\/li>\n\n\n\n
                • Tear-film and dry-eye assessment<\/li>\n\n\n\n
                • Pupil characteristics<\/li>\n\n\n\n
                • General eye health<\/li>\n\n\n\n
                • Previous eye procedures<\/li>\n\n\n\n
                • Current medications<\/li>\n\n\n\n
                • Relevant medical history<\/li>\n\n\n\n
                • Lifestyle and occupation<\/li>\n\n\n\n
                • Visual expectations<\/li>\n<\/ul>\n\n\n\n

                  Thin corneas, dry eye, refractive instability and conditions such as keratoconus require particular attention.<\/p>\n\n\n\n

                  Contact lenses may also need to be stopped before measurements because they can temporarily alter corneal shape. The required period depends on the type of contact lens and the ophthalmologist’s instructions.<\/p>\n\n\n\n

                  What Happens During Femto LASIK?<\/h2>\n\n\n\n

                  The eye is numbed with anaesthetic drops.<\/p>\n\n\n\n

                  During Femto LASIK:<\/p>\n\n\n\n

                    \n
                  1. A femtosecond laser creates a thin corneal flap.<\/li>\n\n\n\n
                  2. The flap is lifted.<\/li>\n\n\n\n
                  3. An excimer laser reshapes the underlying corneal tissue.<\/li>\n\n\n\n
                  4. The flap is repositioned.<\/li>\n<\/ol>\n\n\n\n

                    Traditional skin sutures are not used.<\/p>\n\n\n\n

                    After treatment, patients use postoperative eye drops and attend follow-up examinations according to the ophthalmologist’s instructions.<\/p>\n\n\n\n

                    What Happens During PRK?<\/h2>\n\n\n\n

                    The eye is also numbed with anaesthetic drops.<\/p>\n\n\n\n

                    During PRK:<\/p>\n\n\n\n

                      \n
                    1. The corneal epithelium is removed.<\/li>\n\n\n\n
                    2. An excimer laser reshapes the underlying corneal tissue.<\/li>\n\n\n\n
                    3. A bandage contact lens is usually placed over the eye.<\/li>\n\n\n\n
                    4. The epithelial surface regenerates during the following days.<\/li>\n<\/ol>\n\n\n\n

                      The bandage lens is temporary and is removed according to the healing process and the ophthalmologist’s assessment.<\/p>\n\n\n\n

                      Vision generally develops more gradually after PRK than after LASIK.<\/p>\n\n\n\n

                      What Is No-Touch Laser?<\/h2>\n\n\n\n

                      \u201cNo-Touch Laser\u201d is a term commonly used for transepithelial surface-laser procedures<\/strong> in which treatment is performed without creating a LASIK flap.<\/p>\n\n\n\n

                      The exact protocol can vary depending on the laser platform and treatment system.<\/p>\n\n\n\n

                      Patients should therefore ask which specific procedure is being proposed rather than relying only on a commercial treatment name.<\/p>\n\n\n\n

                      PRK vs LASEK: Are They the Same?<\/h2>\n\n\n\n

                      PRK and LASEK both belong to the broader group of surface-ablation procedures, but they are not technically identical.<\/p>\n\n\n\n

                      Both avoid creation of a LASIK-style flap.<\/p>\n\n\n\n

                      The main technical difference involves how the corneal epithelial layer is managed.<\/p>\n\n\n\n

                      For patients, the more useful questions are:<\/p>\n\n\n\n

                        \n
                      • Why is a surface treatment being recommended?<\/li>\n\n\n\n
                      • How will the epithelial layer be managed?<\/li>\n\n\n\n
                      • What will early recovery involve?<\/li>\n\n\n\n
                      • Why is this technique appropriate for my cornea?<\/li>\n<\/ul>\n\n\n\n

                        The exact method should be explained before treatment.<\/p>\n\n\n\n

                        What Are the Risks of LASIK?<\/h2>\n\n\n\n

                        Potential side effects and complications can include:<\/p>\n\n\n\n

                          \n
                        • Dry-eye symptoms<\/li>\n\n\n\n
                        • Glare<\/li>\n\n\n\n
                        • Halos<\/li>\n\n\n\n
                        • Starbursts<\/li>\n\n\n\n
                        • Ghosted or double images<\/li>\n\n\n\n
                        • Light sensitivity<\/li>\n\n\n\n
                        • Under-correction<\/li>\n\n\n\n
                        • Over-correction<\/li>\n\n\n\n
                        • Residual refractive error<\/li>\n\n\n\n
                        • Infection<\/li>\n\n\n\n
                        • Inflammation<\/li>\n\n\n\n
                        • Corneal healing problems<\/li>\n\n\n\n
                        • Flap-related complications<\/li>\n\n\n\n
                        • Need for further treatment<\/li>\n<\/ul>\n\n\n\n

                          Some patients may continue to notice visual symptoms even when standard visual-acuity measurements are good.<\/p>\n\n\n\n

                          What Are the Risks of PRK?<\/h2>\n\n\n\n

                          PRK shares several possible complications with LASIK, including:<\/p>\n\n\n\n

                            \n
                          • Under-correction<\/li>\n\n\n\n
                          • Over-correction<\/li>\n\n\n\n
                          • Residual refractive error<\/li>\n\n\n\n
                          • Glare<\/li>\n\n\n\n
                          • Halos<\/li>\n\n\n\n
                          • Light sensitivity<\/li>\n\n\n\n
                          • Infection<\/li>\n\n\n\n
                          • Dry-eye symptoms<\/li>\n\n\n\n
                          • Reduced visual quality<\/li>\n\n\n\n
                          • Need for additional treatment<\/li>\n<\/ul>\n\n\n\n

                            PRK also has risks related specifically to surface healing, including delayed epithelial healing and corneal haze in selected cases.<\/p>\n\n\n\n

                            Because PRK does not create a corneal flap, flap-specific complications are avoided.<\/p>\n\n\n\n

                            This does not make PRK risk-free; it has a different recovery and risk profile.<\/p>\n\n\n\n

                            Can LASIK or PRK Cause Night-Vision Problems?<\/h2>\n\n\n\n

                            Yes.<\/p>\n\n\n\n

                            Possible postoperative symptoms include:<\/p>\n\n\n\n

                              \n
                            • Halos around lights<\/li>\n\n\n\n
                            • Glare<\/li>\n\n\n\n
                            • Starbursts<\/li>\n\n\n\n
                            • Ghosting<\/li>\n\n\n\n
                            • Difficulty seeing in low-light conditions<\/li>\n<\/ul>\n\n\n\n

                              These symptoms may improve as the eyes heal, but they can be significant in some patients.<\/p>\n\n\n\n

                              Anyone who drives frequently at night or relies heavily on low-light vision for work should mention this during assessment.<\/p>\n\n\n\n

                              Can Your Prescription Return After LASIK or PRK?<\/h2>\n\n\n\n

                              Yes.<\/p>\n\n\n\n

                              LASIK and PRK reshape the cornea but do not prevent the eyes from changing in the future.<\/p>\n\n\n\n

                              Residual or recurrent refractive error can occur.<\/p>\n\n\n\n

                              Vision can also be affected later by unrelated age-related changes such as:<\/p>\n\n\n\n

                                \n
                              • Presbyopia<\/li>\n\n\n\n
                              • Cataracts<\/li>\n\n\n\n
                              • Changes in the natural lens<\/li>\n\n\n\n
                              • Other eye disease<\/li>\n<\/ul>\n\n\n\n

                                Laser eye surgery should therefore not be described as permanently fixing a prescription for life.<\/p>\n\n\n\n

                                Who May Not Be Suitable for LASIK or PRK?<\/h2>\n\n\n\n

                                Eligibility must be assessed individually.<\/p>\n\n\n\n

                                Reasons treatment may need to be postponed, modified or avoided include:<\/p>\n\n\n\n

                                  \n
                                • Unstable refractive prescription<\/li>\n\n\n\n
                                • Keratoconus or suspected corneal instability<\/li>\n\n\n\n
                                • Insufficient corneal thickness<\/li>\n\n\n\n
                                • Abnormal corneal shape<\/li>\n\n\n\n
                                • Significant untreated dry eye<\/li>\n\n\n\n
                                • Active eye infection or inflammation<\/li>\n\n\n\n
                                • Certain eye diseases<\/li>\n\n\n\n
                                • Medical conditions affecting healing<\/li>\n\n\n\n
                                • Certain medications<\/li>\n\n\n\n
                                • Pregnancy or other periods associated with refractive instability<\/li>\n\n\n\n
                                • Expectations that cannot reasonably be met<\/li>\n<\/ul>\n\n\n\n

                                  Being unsuitable for LASIK does not automatically make a patient suitable for PRK.<\/p>\n\n\n\n

                                  LASIK vs PRK: Which Is Better?<\/h2>\n\n\n\n

                                  Neither is better for every patient.<\/p>\n\n\n\n

                                  LASIK may be preferred by some suitable patients because early vision usually recovers faster and initial discomfort tends to be lower.<\/p>\n\n\n\n

                                  PRK avoids creation of a corneal flap and may be considered in selected patients because of corneal anatomy, dry-eye considerations, lifestyle or risk of eye trauma.<\/p>\n\n\n\n

                                  The choice should not be based simply on which technique is newer, more familiar or promoted more heavily.<\/p>\n\n\n\n

                                  The appropriate procedure is the one that offers a reasonable balance between corneal safety, visual goals and expected recovery for the individual patient.<\/p>\n\n\n\n

                                  How Does an Ophthalmologist Choose Between LASIK and PRK?<\/h2>\n\n\n\n

                                  The decision involves considerably more than the glasses prescription.<\/p>\n\n\n\n

                                  Relevant factors can include:<\/p>\n\n\n\n

                                    \n
                                  • Corneal thickness<\/li>\n\n\n\n
                                  • Corneal shape and tomography<\/li>\n\n\n\n
                                  • Refractive error<\/li>\n\n\n\n
                                  • Prescription stability<\/li>\n\n\n\n
                                  • Dry-eye status<\/li>\n\n\n\n
                                  • Pupil characteristics<\/li>\n\n\n\n
                                  • Previous eye procedures<\/li>\n\n\n\n
                                  • General eye health<\/li>\n\n\n\n
                                  • Age<\/li>\n\n\n\n
                                  • Occupation<\/li>\n\n\n\n
                                  • Contact-sport participation<\/li>\n\n\n\n
                                  • Risk of eye trauma<\/li>\n\n\n\n
                                  • Visual requirements<\/li>\n\n\n\n
                                  • Patient expectations<\/li>\n<\/ul>\n\n\n\n

                                    Some patients may technically qualify for more than one procedure.<\/p>\n\n\n\n

                                    In that situation, the ophthalmologist can explain how the advantages and limitations of each technique apply to that person’s eyes.<\/p>\n\n\n\n

                                    Planning LASIK or PRK as an International Patient<\/h2>\n\n\n\n

                                    Patients travelling for laser eye surgery should avoid selecting a procedure based only on an online package, advertised price or treatment name.<\/p>\n\n\n\n

                                    Preliminary information can help determine whether further assessment is reasonable, but final eligibility requires detailed eye examination and corneal measurements.<\/p>\n\n\n\n

                                    Before treatment, international patients should understand:<\/p>\n\n\n\n

                                      \n
                                    • Which refractive procedure is proposed<\/li>\n\n\n\n
                                    • Why it is being recommended<\/li>\n\n\n\n
                                    • Whether more than one technique is suitable<\/li>\n\n\n\n
                                    • What preoperative tests are required<\/li>\n\n\n\n
                                    • Which laser technology will be used<\/li>\n\n\n\n
                                    • Which eye drops or medications are required<\/li>\n\n\n\n
                                    • When postoperative examinations are needed<\/li>\n\n\n\n
                                    • When normal activities can resume<\/li>\n\n\n\n
                                    • When flying is considered appropriate<\/li>\n\n\n\n
                                    • What to do if a problem develops after returning home<\/li>\n<\/ul>\n\n\n\n

                                      Travel arrangements should allow sufficient time for the postoperative examinations recommended by the treating ophthalmologist.<\/p>\n\n\n\n

                                      LASIK and PRK at Avicenna International Hospital<\/h2>\n\n\n\n

                                      At Avicenna International Hospital’s<\/strong> Eye Center in Istanbul, patients with refractive errors such as myopia, hyperopia and astigmatism can be assessed for laser vision correction.<\/p>\n\n\n\n

                                      Current refractive-laser options include:<\/p>\n\n\n\n

                                        \n
                                      • PRK-LASEK<\/li>\n\n\n\n
                                      • No-Touch Laser<\/li>\n\n\n\n
                                      • Femto LASIK (i-LASIK)<\/li>\n<\/ul>\n\n\n\n

                                        Treatment selection is based on refractive error, corneal thickness and shape, ocular-surface condition, general eye health and findings from the preoperative examination.<\/p>\n\n\n\n

                                        A patient may therefore be assessed for Femto LASIK, a surface-ablation technique such as PRK-LASEK, or another available refractive approach depending on those findings.<\/p>\n\n\n\n

                                        For international patients, previous prescriptions and relevant ophthalmic records may assist with preliminary review, but final eligibility requires clinical examination and appropriate corneal measurements.<\/p>\n\n\n\n

                                        Frequently Asked Questions<\/h2>\n\n\n\n

                                        Is PRK the Same as LASIK?<\/h3>\n\n\n\n

                                        No. Both reshape the cornea, but LASIK creates a corneal flap while PRK removes the surface epithelium and allows it to regenerate.<\/p>\n\n\n\n

                                        Which Heals Faster, LASIK or PRK?<\/h3>\n\n\n\n

                                        LASIK generally provides faster early visual recovery. PRK requires healing of the corneal surface, so early recovery is usually slower.<\/p>\n\n\n\n

                                        Is PRK Better for Thin Corneas?<\/h3>\n\n\n\n

                                        PRK may be considered for some patients with thinner corneas, but a thin cornea still requires detailed structural assessment. Some patients may not be suitable for either procedure.<\/p>\n\n\n\n

                                        Which Is More Painful, LASIK or PRK?<\/h3>\n\n\n\n

                                        PRK generally causes more early discomfort because the epithelial surface has to regenerate.<\/p>\n\n\n\n

                                        Does PRK Have a Corneal Flap?<\/h3>\n\n\n\n

                                        No. PRK is a surface-ablation procedure and does not create a LASIK flap.<\/p>\n\n\n\n

                                        Can LASIK Cause Dry Eyes?<\/h3>\n\n\n\n

                                        Yes. LASIK can cause or worsen dry-eye symptoms in some patients.<\/p>\n\n\n\n

                                        Can PRK Correct Astigmatism?<\/h3>\n\n\n\n

                                        Yes, in appropriately selected patients.<\/p>\n\n\n\n

                                        Is No-Touch Laser the Same as LASIK?<\/h3>\n\n\n\n

                                        No. No-Touch Laser generally refers to a surface-laser approach without creation of a LASIK flap.<\/p>\n\n\n\n

                                        Is No-Touch Laser the Same as PRK?<\/h3>\n\n\n\n

                                        They belong to the same broader family of surface-laser treatments, but the exact technique and management of the epithelial layer can differ.<\/p>\n\n\n\n

                                        Can LASIK or PRK Guarantee 20\/20 Vision?<\/h3>\n\n\n\n

                                        No. Neither procedure can guarantee a particular visual result or permanent independence from glasses.<\/p>\n\n\n\n

                                        Can My Eyes Change Again After Laser Eye Surgery?<\/h3>\n\n\n\n

                                        Yes. Refractive error can change, and age-related conditions such as presbyopia or cataracts can affect vision later.<\/p>\n\n\n\n

                                        Which Is Better: LASIK or PRK?<\/h3>\n\n\n\n

                                        Neither is better for everyone. Corneal anatomy, prescription, dry-eye status, lifestyle and overall eye health determine which procedure may be more appropriate.<\/p>\n\n\n\n

                                        \n \n \n \n \n medically approved. <\/strong> Last updated: 21 September 2026.<\/span>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

                                        Learn the difference between LASIK and PRK laser eye surgery, including corneal treatment, recovery, risks, dry-eye and thin-cornea considerations and suitability.<\/p>\n","protected":false},"author":53,"featured_media":134156,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[8151],"class_list":["post-134148","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-eye-surgery"],"yoast_head":"\nLASIK vs PRK: What\u2019s the Difference? | Avicenna<\/title>\n<meta name=\"description\" content=\"Compare LASIK vs PRK, including corneal flap differences, recovery, discomfort, risks, thin-cornea considerations and how laser eye surgery is selected.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/avicennaint.com\/en\/lasik-vs-prk\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LASIK vs. PRK: What\u2019s the Difference in Laser Eye Surgery?\" \/>\n<meta property=\"og:description\" content=\"Learn the difference between LASIK and PRK laser eye surgery, including corneal treatment, recovery, risks, dry-eye and thin-cornea considerations and suitability.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/avicennaint.com\/en\/lasik-vs-prk\/\" \/>\n<meta property=\"og:site_name\" content=\"Avicenna International Hospital\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/avicennaint\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-21T09:59:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-23T16:11:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/avicennaint.com\/wp-content\/uploads\/2026\/09\/lasik-vs-prk.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"avicennaint\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@avicennaintcom\" \/>\n<meta name=\"twitter:site\" content=\"@avicennaintcom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"avicennaint\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"13 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/avicennaint.com\\\/en\\\/lasik-vs-prk\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/avicennaint.com\\\/en\\\/lasik-vs-prk\\\/\"},\"author\":{\"name\":\"avicennaint\",\"@id\":\"https:\\\/\\\/avicennaint.com\\\/en\\\/#\\\/schema\\\/person\\\/50695327e5a1880af6c7f504c2ed8a47\"},\"headline\":\"LASIK vs. PRK: What\u2019s the Difference in Laser Eye Surgery?\",\"datePublished\":\"2026-09-21T09:59:09+00:00\",\"dateModified\":\"2026-09-23T16:11:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/avicennaint.com\\\/en\\\/lasik-vs-prk\\\/\"},\"wordCount\":2904,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/avicennaint.com\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/avicennaint.com\\\/en\\\/lasik-vs-prk\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/avicennaint.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/lasik-vs-prk.webp\",\"keywords\":[\"Eye Surgery\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/avicennaint.com\\\/en\\\/lasik-vs-prk\\\/#respond\"]}]},{\"@type\":[\"WebPage\",\"MedicalWebPage\"],\"@id\":\"https:\\\/\\\/avicennaint.com\\\/en\\\/lasik-vs-prk\\\/\",\"url\":\"https:\\\/\\\/avicennaint.com\\\/en\\\/lasik-vs-prk\\\/\",\"name\":\"LASIK vs PRK: What\u2019s the Difference? 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