7 Key Differences Between PRK And LASIK | SmartVision Eye Hospitals

Find out if you're eligible for Prk or Lasik eye surgery - smart vision eye hospitals

PRK or Lasik - Which is the best eye surgery?

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People who are looking for flawless vision often have to choose which type of refractive surgery to have. In this arena, Photorefractive Keratectomy (PRK) and Laser-Assisted In Situ Keratomileusis (LASIK) are popular rivals. It becomes essential to comprehend the distinctions between these operations at Smart Vision Eye Hospital, which is renowned for its cutting-edge technology and personalized attention.

The Surgical Process


Photorefractive Keratectomy involves using an excimer laser to reshape the cornea after removing the corneal epithelium, the outermost layer of the eye. Throughout the healing period, the epithelium regrows.


On the other hand, LASIK surgery involves creating a corneal flap, raising it, and using a laser to reshape the cornea. Subsequently, the flap is relocated, leading to a faster recovery than with PRK.

Healing Period


Although PRK surgery has excellent long-term results, the healing period is slightly longer since the corneal epithelium takes time to repair. During the first healing phase, patients could have pain and blurred vision.


LASIK has a shorter recovery time, with patients often detecting improved vision within a day or two following the treatment. LASIK treatment is a superior alternative for people who want rapid visual rehabilitation because the corneal flap is generated sooner, which accelerates the healing process.

Qualification Standards


PRK is a suitable option for people whose corneas are thinner or who are not qualified for LASIK because of specific corneal conditions. It is also preferred by people who lead an active lifestyle because there is no chance of flap-related issues.


LASIK is often advised for people with thicker corneas and those who want a quick recovery. On the other hand, people who play contact sports or engage in other activities, where there are chances of eye injuries may find the formation of a corneal flap concerning.

Pain and Discomfort


Since the corneal epithelium is removed, inflammation and discomfort are generally greater in the first few days following PRK. However, as the epithelium regenerates, this discomfort lessens.


It is well known that there is little discomfort experienced both during and after the treatment. As a natural bandage, the corneal flap lessens the possibility of chronic discomfort.

Stability Over Time


PRK is the best option for anyone looking for long-lasting visual results because it has exceptional long-term stability. The surgery is more resilient because there is no need for a corneal flap.


The majority of individuals who get LASIK report long-term improvements in their vision, often lasting years. Over the period, there might be an unlikely chance of encountering issues with the corneal flap.

Rate of Success

Your vision can be permanently corrected with both of these treatments. The healing time is the primary difference.

After LASIK, it will take a few days or less to see clearly. PRK takes around one month, in contrast. The outcome will be the same if the surgery is done correctly by a qualified, skilled surgeon.

Outcomes from PRK surgery are similar to those from LASIK; however, because new epithelial cells grow and cover the surface of the eye over a few days, early recovery from PRK surgery is typically delayed. Additionally, in the initial days following surgery, there is a modest increase in the risk of impaired vision and eye infections.

What is the best age for PRK | Lasik eye surgery and how to determine which suits you the best

Benefits and Drawbacks

Benefits of PRK:

  • Patients with thinner corneas could benefit from it
  • There is no chance of problems with the corneal flap
  • The chance of negatively altering corneal thickness is reduced

Drawbacks of PRK

  • There is a significant recovery period, which could be inconvenient
  • Following surgery, you have to wait at least one week before driving
  • After PRK, you might need to take some time off from work
  • Following surgery, you should stay out of the sun for one to six weeks
  • Your recuperation could be more challenging
  • In the initial days after surgery, there is a higher risk of eye infection

Benefits of LASIK Surgery

  • There is a significantly shorter recuperation period
  • After LASIK surgery, you won't be able to drive immediately, but many patients can start driving a day later
  • After LASIK surgery you certainly wouldn't need to take time off from work
  • You notice an improvement in vision almost immediately
  • There is no requirement for bandages
  • The risk of infection is reduced
  • Minimal follow-up visits are usually required
  • Little medication is usually recommended

Drawbacks to LASIK Surgery

  • Those with thin corneas may not want to use it
  • There could be a higher chance of struggles with the corneal flap
  • It can be more common to have poor night vision
  • The probability of developing dry eyes is higher

Is PRK Possible Following LASIK?

Even though LASIK surgery results in permanently better vision for the great majority of patients, some patients could require additional treatments to achieve the desired result. It is conceivable, and in fact, might be the safest option, to undergo PRK following LASIK. It is not always a good idea to have another LASIK procedure done a few years after the first one because there is a considerably larger chance of epithelial ingrowth. In that instance, PRK would be suggested as a follow-up eye treatment.

Smart Vision Eye Hospital: Raising the Bar

With the latest technology, PRK and LASIK procedures are carried out precisely and safely at Smart Vision Eye Hospital. Patients receive individualized consultations to select the best technique based on their specific eye characteristics and lifestyle, as part of the hospital's dedication to patient-centric care.

Deciding between PRK and LASIK is crucial in the field of vision correction. Individuals can embark on their journey to visual clarity with confidence at Smart Vision Eye Hospital, where innovation meets competence.