Who Is a Good Candidate for LASIK or PRK?

LASIK and PRK can sound almost too easy from the outside. You have glasses or contact lenses, a laser reshapes the front surface of the eye, and suddenly life feels clearer.

But good laser eye surgery is not just about wanting freedom from glasses. It is about whether your eyes are stable, healthy, and safe for the procedure.

That is why a proper assessment with Dr. Roxanna Gangi matters before making a decision.

Dr. Roxanna Gangi is a Canadian licensed optometrist serving patients across Toronto, Aurora, Newmarket, Richmond Hill, Thornhill, Vaughan, and North York. Before practicing optometry in Ontario, Dr. Roxanna Gangi practiced as an ophthalmologist and performed these types of procedures hundreds of times. That background helps her understand what surgeons look for, how patients should be prepared, and what matters during healing after surgery.

LASIK and PRK are not just about your prescription

Many people think laser eye surgery is only about the number in their glasses prescription.

That number matters, but it is only one piece of the puzzle.

Your cornea, tear film, prescription stability, eye pressure, eye health, age, lifestyle, and expectations all matter too. Two patients can have the same prescription, but one may be a good LASIK candidate while the other may be safer with PRK, another option, or no surgery at all.

Think of it like renovating a house. You do not only look at the paint colour. You check the foundation first.

What makes someone a good candidate?

A good LASIK or PRK candidate usually has a stable prescription, healthy corneas, good overall eye health, and realistic expectations.

Most surgeons want to see that your prescription has not been changing quickly. If your eyes are still shifting, surgery may correct today's prescription but not tomorrow's.

A healthy cornea is also essential. LASIK and PRK both reshape the cornea, which is the clear front window of the eye. If the cornea is too thin, irregular, or weak, laser eye surgery may carry more risk.

The Canadian Association of Optometrists explains that refractive surgery suitability depends on a full eye health and vision assessment, not just a glasses prescription. That is why a comprehensive eye exam is the right first step before deciding whether LASIK or PRK makes sense.

Why dry eye matters before LASIK or PRK

Dry eye is one of the most common issues that can affect laser eye surgery planning.

The tear film is the first surface light passes through when entering the eye. If that surface is unstable, your vision can feel blurry, tired, or inconsistent, even if your prescription is technically correct.

It is like trying to watch a 4K movie through a smudged window. The screen may be excellent, but the image still looks off.

Laser eye surgery can temporarily worsen dryness in some patients. That does not mean everyone with dry eye is automatically disqualified, but it does mean dryness should be checked and treated before surgery whenever needed.

Dr. Roxanna Gangi may recommend a dry eye assessment before moving forward, especially if you already experience burning, irritation, fluctuating vision, contact lens discomfort, or tired eyes after screen use.

Who may not be eligible right now?

Some patients are not good LASIK or PRK candidates at the time of assessment.

That may include people with an unstable prescription, thin or irregular corneas, untreated dry eye, active eye inflammation, certain corneal conditions, uncontrolled diabetes, pregnancy, breastfeeding, or health conditions that may affect healing.

Health Canada notes that laser eye surgery can involve risks such as dry eyes, glare, halos, night vision problems, and corneal complications. From a Canadian patient's point of view, this is exactly why the screening process should not be rushed.

Being told "not right now" does not always mean "never." Sometimes the better plan is to treat dry eye first, wait for the prescription to stabilize, or choose a different procedure.

LASIK or PRK: which one is better?

Neither option is automatically better.

LASIK often has a faster recovery because the surgeon creates a thin flap in the cornea. PRK does not involve a flap, so the surface layer of the cornea heals back naturally. PRK recovery is usually slower, but it may be considered in some cases where LASIK is not ideal.

The better choice depends on your corneal thickness, prescription, tear film, occupation, sports, lifestyle, and surgeon recommendation.

This is where Dr. Roxanna Gangi's background becomes valuable. Because she has experience from both the optometry side and previous ophthalmology practice, she can help patients understand the "why" behind the recommendation, not just the name of the procedure.

Why co management matters

Laser eye surgery does not begin and end on surgery day.

Before surgery, your eyes need to be measured, checked, and prepared. After surgery, healing needs to be monitored carefully.

That is the purpose of laser eye surgery co management.

Dr. Roxanna Gangi helps patients understand whether they may be suitable for LASIK or PRK, prepares them before referral when appropriate, and follows their recovery after surgery. This gives patients local support before and after the procedure instead of leaving them to figure everything out alone.

The Ottawa Hospital Eye Institute also emphasizes that patients should understand possible side effects and recovery expectations before laser eye surgery. A calm, honest discussion before surgery can prevent a lot of confusion later.

The safest first step

If you are considering LASIK or PRK in Toronto, Aurora, Newmarket, Richmond Hill, Thornhill, Vaughan, or North York, the best first step is not picking the surgery first.

The best first step is finding out whether your eyes are truly ready.

You can book an appointment with Dr. Roxanna Gangi for a proper assessment, learn more about Dr. Roxanna Gangi, or visit the laser eye surgery co management page to understand how pre and post surgery care works.

Clearer vision may be the goal, but safe, well planned vision is the priority.

Related Articles

• LASIK vs PRK: What Is the Difference? (coming soon)
• What to Expect Before Laser Eye Surgery (coming soon)
• Dry Eye Symptoms Before LASIK or PRK (coming soon)
• Why a Comprehensive Eye Exam Matters Before Laser Eye Surgery (coming soon)

Dr. Roxanna Gangi welcomes patients across the GTA. See all clinic locations to find the most convenient office for you.