Photorefractive Keratectomy vs LASIK: What You Need to Know

a doctor doing lasik surgery

When it comes to choosing the right laser vision correction, it often boils down to PRK vs LASIK. Both procedures aim to reduce dependence on glasses or contact lenses by correcting refractive errors. However, many ask: “Which is better, PRK or LASIK?”

Knowing what each procedure involves and how it fits your unique eyes and lifestyle can make all the difference. Instead of just focusing on price or popularity, it’s important to understand how each surgery works and what you can expect afterward. This guide will help you find the vision correction option that truly suits you.

What is PRK?

PRK stands for Photorefractive Keratectomy. It’s an early form of laser eye surgery and remains a trusted option, especially for people with certain corneal characteristics. PRK works by reshaping the cornea (the clear front surface of your eye) so light focuses properly on the retina.

What Happens During PRK?

  • Your eye is numbed with anesthetic drops.
  • The ophthalmologist gently removes the thin outer layer of the cornea (the epithelium).
  • A precise laser sculpts the underlying corneal tissue to correct your vision.
  • A soft contact lens is placed as a bandage to protect your eye while it heals.

a surgeon doing PRK surgery with other healthcare professionals

What Is PRK Recovery Like?

Compared to LASIK, PRK requires patience during recovery since the surface layer of your cornea needs time to grow back. You might experience some discomfort and blurred vision for several days. Most people notice their vision gradually improving over one to four weeks, with full clarity typically achieved after a month. Your doctor will remove the bandage lens once the surface has healed, and you’ll have regular follow-ups to monitor your progress.

What is LASIK?

LASIK stands for Laser-Assisted In Situ Keratomileusis. This is the most popular laser vision correction surgery worldwide, known for its quick recovery and minimal discomfort. LASIK also reshapes the cornea, but the approach is a bit different.

What Happens During LASIK?

  • Your eye is numbed with drops.
  • A small flap is created in the epithelium using a femtosecond laser, allowing the surgeon to lift this layer without removing it completely.
  • The exposed corneal tissue is reshaped with an excimer laser to correct vision by adjusting the eye’s shape.
  • After the laser reshaping, the epithelial flap is carefully repositioned over the cornea to heal naturally alongside the underlying tissues.

a patient undergoing lasik surgery

What Is LASIK Recovery Like?

Compared to PRK, LASIK’s main advantage is its rapid recovery. Most people notice clearer vision within 24 hours. You might feel mild dryness or a gritty sensation, but these usually resolve quickly. Most patients return to work and daily activities within a day or two, though their vision will continue to stabilize over the next few months.

Comparing LASIK vs PRK

Both PRK and LASIK use advanced laser technology to correct refractive errors like nearsightedness, farsightedness, and astigmatism. They both offer excellent long-term results, but the way they’re performed and the recovery experience are different:

Feature

PRK

LASIK

Corneal Flap No flap created Flap created
Recovery Gradual (weeks to a month), requires bandages Rapid (often within 24–48 hours), does not require bandages or stitches
Long-Term Results Equal to LASIK Equal to PRK
Discomfort More in the first week Minimal
Ideal For
  • Thin corneas, active/contact sports athletes
  • Thin or irregular corneas.
  • Most refractive errors, quick recovery
  • Patients with corneas thick enough for a flap.

PRK vs LASIK: Pros and Cons

Understanding the advantages and drawbacks of each procedure can help you make a choice that fits your needs and lifestyle.

PRK

Pros:

  • No Flap Complications: Unlike LASIK, PRK doesn’t create a corneal flap, so there’s no risk of flap dislocation or related complications. This makes it a safer option for people who play contact sports, work in dusty environments, or have physically demanding jobs.
  • Suitable for Thin or Irregular Corneas: If you’ve been told your corneas are too thin for LASIK, PRK may still be an option.
  • Long-Term Stability: PRK outcomes are just as stable and effective as LASIK in the long run. Once your eyes heal, you can expect clear, lasting vision.

Cons:

  • Longer, More Uncomfortable Recovery: The first few days after PRK can be challenging. You may experience discomfort, tearing, and light sensitivity while your corneal surface heals. Vision is blurry at first and improves gradually.
  • Slower Return to Normal Activities: Most people need to take a few days off work or school. It can take several weeks before your vision fully stabilizes.
  • More Frequent Follow-Ups: You’ll need more check-ups in the first month to monitor healing and ensure the new corneal surface is healthy.

an eye surgeon doing PRK surgery

LASIK

Pros:

  • Quick Recovery: LASIK is known for its faster results vs PRK. Many people see clearly within a day and return to their usual activities almost immediately. Discomfort is usually mild and short-lived.
  • Immediate Vision Improvement: If you need to get back to work or school quickly, LASIK is appealing because of the rapid visual recovery.
  • Less Early Downtime: You can resume most activities within 24 to 48 hours, making LASIK a practical choice for busy individuals.

Cons:

  • Flap-Related Risks: Creating a corneal flap introduces a small risk, such as flap displacement. These are rare, especially with experienced surgeons and modern technology, but they can affect healing.
  • Not for Thin Corneas: If your corneas are too thin, LASIK may not be recommended, as the flap creation removes additional tissue.
  • Potential for Dry Eye: Some people experience dry eyes after LASIK, sometimes more so than after PRK, though this usually improves with time and treatment.

an eye surgeon doing lasik surgery

Which Procedure Is Right for You?

Choosing between LASIK and PRK isn’t about which is “better”—it’s about which is better for you. Here are some important factors to consider:

  • Corneal Thickness: If your corneas are thin or have certain irregularities, PRK may be safer since it doesn’t require creating a flap.
  • Lifestyle: If you play contact sports or have a job with a risk of eye injury, PRK is often preferred because there’s no flap that could be dislodged.
  • Healing Time: LASIK is ideal if you want fast results and minimal downtime. PRK takes longer to heal, but the final outcome is just as good.
  • Dry Eye Risk: Both procedures can cause dry eyes temporarily, but LASIK may have a slightly higher risk due to the flap.
  • Cost: The costs of PRK vs LASIK are usually similar, but this can vary depending on the provider and technology used.
  • Risks and Side Effects: PRK involves more discomfort and slower recovery; LASIK carries a small risk of flap-related complications, though these are rare with modern techniques.

A comprehensive eye exam is essential to determine which procedure is safest and most effective for you.

Making an Informed Choice for Your Eye Health

Choosing Photorefractive Keratectomy vs LASIK is a personal decision, but you don’t have to make it alone. At the Asian Eye Institute, we’re here to guide you every step of the way. Our experienced ophthalmologists use advanced technology and a patient-centered approach to help you achieve your best vision.

If you’re ready to see the world more clearly, schedule a consultation at the Asian Eye Institute near you today. Let’s find the vision correction solution that fits your eyes, your lifestyle, and your goals.

Other Topics That You Might Like

Understanding Myopia and Ortho-K

Myopia, or nearsightedness, is one of the most common vision problems today. And it’s only more prevalent in Asia, with studies showing that more than 80% of children and young adults are affected. 

Nearsightedness is caused by an irregularity in the shape of the eyeball. The eyeball is supposed to be round, but for myopic people, it is slightly elongated. As a result, you may experience blurry vision when looking at an object from a distance. 

People with myopia might have trouble recognizing faces or reading small texts, especially if they are at a considerable distance from the person or item they are looking at.  If left unmanaged, high myopia can increase the risk of serious eye diseases like retinal detachment, glaucoma, and cataracts. 

The good news? With help from specialists, myopia can be managed through several treatment options. The goal is to not just to correct vision, but also to slow its progression.

What Experts Recommend

Eye care specialists recommend early intervention and regular eye exams as the best way to manage myopia and prevent it from worsening. 

Common options offered by eye care specialists include specialized eyeglass lenses, contact lenses such as Orthokeratology (Ortho-K), and medicated eye drops like low-dose atropine to slow progression. Meanwhile, older patients with stable prescriptions can opt to choose refractive surgeries such as LASIK or Implantable Collamer Lens (ICL). 

Optical Treatments for Myopia

Asian Little Chinese Girl Doing Eyes Examination at An Optical Shop

Prescription eyeglasses or contact lenses are one of the common ways to manage myopia. However, this correction method has some limitations, considering that these visual aids are quite easy to misplace or damage. Today, advanced myopia control lenses can help slow down eye elongation in children.

An alternative is undergoing surgery. The available procedures can be quite costly, though, so they might not be the right option for those on a tight budget. 

Orthokeratology (Ortho-K)

asian-ophthalmologist-examines-childs-vision

For adults with stable prescriptions, procedures like LASIK and PRK permanently help reshape the cornea for clear vision. Ortho-K has also shown that it can deter myopia progression in kids up to 18 years old, making it a safe and effective alternative to LASIK. In many cases, myopia starts at an early age and can be properly diagnosed through a comprehensive eye exam. 

Interestingly, orthokeratology was actually developed to help control myopia in children and delay its progression. It works by gently reshaping the cornea to help the eyes focus properly on objects no matter the distance.

Special contact lenses, called ortho-k contact lenses, are worn at night for about six hours while you are sleeping. In the morning, when you wake up, you can take the lenses off and immediately notice how you can see clearly even without them.

If you are eligible, your eyes will then be thoroughly examined so doctors can get their exact measurements. The topography of your cornea will be determined to help eye care providers create custom-fit orthokeratology lenses. 

Ready to take the next step? Talk to a specialist about the best eye care plan for you. Feel free to reach us at (02) 8-898-2020 or book an appointment here.

AEI’s main clinics are located at Phinma Plaza, with satellite clinics in TriNoma, Quezon City and Commercenter Alabang. 

Post-Surgery Expectations: What to Expect After LASIK Surgery

One of the biggest benefits of LASIK is how quickly results can be seen. Most patients notice an improvement in their vision just a few hours after the procedure. According to the American Refractive Surgery Council, more than 90% of patients achieve 20/20 vision, while 99% reach 20/40 vision or better. Yes, good enough to drive without glasses!

But the lingering question is, what happens after LASIK surgery? This is where we come in. We’re here to reassure you and tell how you can better care of your eyes during recovery.

Managing Common LASIK Side Effects

Optometry, tablet and optician with man for results, communication and consulting about vision. Healthcare, medical and ophthalmologist talking to a patient about eye care after an exam with tech

Some LASIK patients will report dryness and light sensitivity during their recovery period. In fact, about 95% of patients report dry eyes during the first month after surgery. Others may also report a mild burning sensation. Doctors usually prescribe lubricating eye drops to combat the irritation.

Common temporary side effects may include dry eyes, glare, halos, and night vision disturbances. Your vision may continue to improve and stabilize over the next few weeks. Full recovery may take about three to six months, so regular follow-ups with your ophthalmologist are important to monitor your healing.

LASIK Surgery Long-Term Results

LASIK is designed to be long-lasting. Studies show that 94% of patients remain glasses-free five years after surgery. However, natural age-related changes like presbyopia (difficulty reading up close) may still occur in your 40s or 50s. This is a normal part of aging, not a sign that LASIK is wearing off.

In some cases, a small number of patients may need an enhancement procedure, especially if there’s a slight regression in vision. This is usually safe and effective when done by an experienced surgeon.

Nevertheless, more and more Filipinos are leaning towards LASIK because of its high success rate. Adding to its wider appeal is the relatively quick and painless procedure, as it also only requires 10 to 20 minutes to perform.

In a country like the Philippines, where the prevalence of visual impairment at 3.64%, specialists like Asian Eye Institute Head of the Cornea and Refractive Surgery Services Dr. Robert T. Ang considers it a foolproof way to improve overall quality of life. It also helps to have the latest generation Victus Femtosecond Laser and Teneo 2 Excimer Laser, each sourced from German manufacturer Bausch and Lomb.

checkup and preparation for lasik surgery

“Having an ultrafast laser speed shortens the treatment time. This means that we lessen the evaporation time and drying of the cornea,” explains Dr. Ang. “This also means that patients don’t have to be anxious during surgery, and there are lesser chances that they will move during the procedure.”

One of the best things about the advanced tracker technology is that it detects and adjusts to all eye movements. “So even if your eye moves up or down, left or right, the laser pulses will be fired in the correct location each time.” Iris Registration, on the other hand, ensures that your treatment will never be applied to another patient’s eyes.”

Ready to take the next step? At Asian Eye Institute, we offer advanced LASIK technology and personalized care to help you achieve your best vision here. Feel free to reach us at (02) 8-898-2020 or book an appointment here.

AEI’s main clinics are located at Phinma Plaza, with a satellite VIsion Center in Power Plant Mall, both of which are in Rockwell Center, Makati. There are also branches in TriNoma, Quezon City and Commercenter Alabang.

Why Do My Eyes Feel Tired All the Time? Understanding Eye Strain, Causes, and When to Worry

If your body feels fine but your eyes feel constantly exhausted, you’re not alone. Understanding why your eyes feel tired but not your body can help you recognize eye strain and know when it’s time to seek care.

Key Takeaways

  • Eye strain is common and often related to screen use, dry eye syndrome, or uncorrected vision, but persistent symptoms shouldn’t be ignored.
  • While eye strain usually develops gradually, certain warning signs, such as sudden vision changes or symptoms that don’t improve with rest, require prompt evaluation.
  • Healthy visual habits and regular eye examinations are key to reducing eye fatigue and early detection of underlying eye conditions.

If your eyes feel tired, heavy, or sore by the end of the day, you’re not alone. Many people describe eye strain as a constant sense of fatigue—burning, dryness, blurred vision, or the feeling that your eyes want to close, even after a full night’s sleep.

Occasional eye fatigue is common, especially in today’s screen-filled world. But when eye fatigue becomes a daily experience, it may be your eyes’ way of telling you that something needs attention. Understanding what causes eye strain, how it feels, and when to seek professional care can help protect both your comfort and your long-term vision.

a young student suffering from tired eyes

What is Eye Strain?

Eye strain, also known as asthenopia, occurs when the eyes are overused or required to focus for extended periods without adequate rest. 

Unlike eye diseases, eye strain doesn’t usually cause permanent damage on its own, but it can noticeably affect your comfort, productivity, and overall quality of life. That said, some eye conditions, such as early glaucoma symptoms, can be subtle at first and may mimic eye strain, which is why proper evaluation is important.

Eye strain typically develops gradually, making it easy to dismiss as “normal tiredness.” Over time, however, the discomfort may become more frequent, last longer, and grow harder to ignore.

Common Causes of Eye Strain

Eye strain rarely has a single cause. It’s usually the result of several habits or conditions working together.

Prolonged Screen Use

Staring at computers, phones, or tablets for hours reduces how often you blink. This leads to dryness, irritation, and blurred vision. Small text, poor screen contrast, and glare can make your eyes work even harder.

Uncorrected Vision Problems

Even mild nearsightedness, farsightedness, astigmatism, or presbyopia can cause eye strain if left uncorrected. Your eyes constantly struggle to focus, leading to fatigue and headaches.

Poor Lighting or Glare

Working in lighting that’s too dim or too bright forces your eyes to adjust continuously. Glare from windows or overhead lights can worsen discomfort, especially during screen use.

a dimly lit room

Dry Eye Syndrome

Dry eye syndrome is a frequent contributor to eye strain. When tear quality or quantity is reduced, the eyes can feel sore, scratchy, or tired, often worsening in the afternoon or evening.

Extended Reading or Close-Up Work

Reading, writing, sewing, or detailed tasks require sustained focus. Without breaks, the eye muscles become fatigued, much as overworked muscles elsewhere in the body do.

Improper Viewing Distance or Posture

Screens that are too close, too far, or positioned at the wrong height can strain both your eyes and neck, contributing to overall discomfort.

Common Symptoms of Eye Strain

Eye strain can feel different from person to person, but common symptoms include:

  • Tired, heavy, or sore eyes
  • Dryness, burning, or irritation
  • Blurred or fluctuating vision
  • Headaches, especially around the forehead or temples
  • Difficulty focusing, especially after long tasks
  • Sensitivity to light
  • Neck and shoulder pain associated with visual tasks

These symptoms often worsen as the day goes on and improve with rest—one of the key clues that eye strain may be the cause.

Simple Ways to Relieve Eye Strain

Small changes can make a noticeable difference in how your eyes feel.

  • Follow the 20-20-20 rule: Every 20 minutes, look at something 20 feet away for at least 20 seconds. This gives your eye muscles a chance to relax.
  • Adjust your workspace: Position screens slightly below eye level, reduce glare, and ensure comfortable lighting.
  • Blink more often: Especially when using screens. Artificial tears may help if dryness is an issue.
  • Take regular breaks: Step away from close-up work to rest both your eyes and posture.
  • Wear the right prescription: Even minor vision changes can lead to significant eye fatigue if left uncorrected.

a woman taking her glasses off

When to See an Eye Doctor

While eye strain typically develops gradually, symptoms such as sudden loss of vision, severe eye pain, or a sudden increase in blurriness are not normal and require immediate medical attention.

Eye strain is often easy to manage, but if your symptoms keep coming back or seem to be getting worse, it’s worth paying attention. When tired eyes start affecting your day, causing headaches, or don’t feel better after rest, an eye checkup can help uncover what’s going on.

An eye doctor can check for refractive errors, dry eye disease, binocular vision problems, or other underlying conditions that may be contributing to your symptoms. Early evaluation helps ensure that eye strain isn’t masking a more serious issue.

Depending on your needs, treatment may include updated prescriptions, dry eye management, or, when appropriate, advanced options such as laser eye surgery to improve visual clarity and reduce eye strain.

Protecting Your Eye Comfort Long-Term

Your eyes work hard for you every day, and constant fatigue isn’t something you have to accept as normal. With proper eye care, healthy visual habits, and regular eye examinations, many people can reduce eye strain and enjoy clearer, more comfortable vision.

When your eyes feel tired all the time, it’s often a signal—not something to brush aside. Paying attention early can help improve how your eyes feel now and protect your vision in the years ahead.

If eye fatigue is affecting your daily life, set a clinic appointment at Asian Eye Institute. Our eye specialists offer personalized care, advanced diagnostic technology, and guidance tailored to your long-term eye health.

Get in touch with us today!

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