What tests are done before LASIK?

Background You Need to Know

Pre-LASIK evaluation includes corneal topography (Pentacam), pachymetry (corneal thickness), aberrometry, dry eye workup, dilated retina exam and refraction with and without cycloplegia. Total time: about 90 minutes.

One commonly under-discussed aspect: pre-operative tear film quality is the single biggest predictor of post-LASIK comfort. Patients with marginal or borderline dry eye benefit enormously from a 4–6 week pre-LASIK dry eye optimisation programme (warm compresses, omega-3 supplementation, lid hygiene, preservative-free lubricants). This single step can transform the comfort experience from 'mildly uncomfortable for 2 months' to 'barely noticeable'.

The Detailed Answer — Point by Point

Here are the specific points that matter most for this question:

• Stop soft contact lenses 7 days before screening, hard/RGP lenses 3 weeks before. Avoid eye makeup on the screening day so corneal scans aren't disrupted.

These points come from current clinical practice across high-volume LASIK centres in India, FDA outcome data, and our own follow-up records. They're not theoretical — they're what actually plays out in real patient timelines.

Practical Guidance for Indian Patients

At leading LASIK centres across India, this aspect of the procedure is covered in detail during your pre-op counselling. If your current centre hasn't explained it clearly, that itself is a yellow flag worth discussing with a second-opinion surgeon.

A quality pre-LASIK consultation should cover: your candidacy explained in plain language, the recommended technology and why, expected timeline for visual recovery, specific lifestyle restrictions for your activities (gym, swimming, travel, profession), the medication schedule, follow-up frequency, and the centre's enhancement policy if a touch-up is needed later. Anything less and you should ask more questions before booking.

Common Myths to Ignore

A few persistent misconceptions are worth clearing up:

• 'LASIK weakens with age' — False. The corneal reshaping is permanent. What changes with age is the natural lens (presbyopia after 40, cataracts after 60), which would happen with or without LASIK.
• 'LASIK causes dry eyes for life' — Misleading. About half of patients have temporary dryness for 1–3 months. Persistent dry eye beyond 6 months is uncommon and usually relates to pre-existing tear film issues that should have been addressed before surgery.
• 'You can't have LASIK if you do sports' — Wrong. SMILE, SMILE Pro and PRK are specifically designed for active patients including martial artists, boxers and military aspirants.
• 'Cheaper LASIK works just as well' — Be cautious. Price differences usually reflect laser platform age, surgeon volume, post-op follow-up depth, and consumables quality — not pure margin.

What You Should Do Next

What we recommend to patients with similar questions:

• Don't rely on a single online source — including this one. Your eyes are unique and only a personalised exam can give you a definitive answer.
• Get a second opinion if you're unsure, especially for borderline candidacy or if a single centre is pushing one specific (often expensive) technology
• Choose a surgeon based on volume (look for 10,000+ procedures performed), platform age (under 5 years preferred) and quality of post-op care — not on price alone
• Ask about enhancement policy upfront (most centres offer free touch-ups within 12 months)
• Read patient reviews on independent platforms (Practo, Google) — pay attention to recovery experience, not just outcome
• Don't rush. A 1–2 week decision window after consultation is healthy. Avoid centres that pressure same-day booking with limited-time discounts.