Choosing between Ortho-K (orthokeratology) and LASIK is a common question for patients with myopia. Both can reduce dependence on glasses and contacts, but they differ sharply in how they work, who is eligible, and what risks or benefits they carry over time. This article lays out the clinical differences to help you make an informed choice for yourself or your child.
How Ortho-K and LASIK work
Understanding the mechanism clarifies why the two approaches suit different patients.
Ortho-K (orthokeratology)
Ortho-K uses specially designed rigid gas-permeable contact lenses worn overnight to gently reshape the cornea's front surface. While you sleep, the lenses redistribute corneal epithelial cells and fluid to temporarily flatten the central cornea, allowing clear unaided vision during the day. The effect is reversible: vision returns to the pre-treatment state if lens wear stops. Ortho-K is non-surgical and is also used specifically for myopia control in children to slow progression.
LASIK (laser-assisted in situ keratomileusis)
LASIK is a corneal refractive surgery in which a thin flap is created in the cornea and an excimer laser removes microscopic amounts of tissue to permanently reshape the cornea. Visual recovery is rapid, often within 24–48 hours, and the change is durable. LASIK requires a stable prescription and adequate corneal thickness. It is not reversible — tissue is permanently removed.
Candidacy: who is best suited for each option
Candidacy depends on age, refractive stability, corneal shape and thickness, ocular surface health, and lifestyle goals.
Ortho-K candidacy
Ortho-K is commonly recommended for:
- Children and adolescents with progressive myopia — it is one of the best non-surgical myopia-control strategies.
- Adults who want daytime freedom from glasses or contact lenses but aren’t ready for surgery.
- People who are not candidates for LASIK due to thinner corneas, mild irregular corneal shapes, or dry eye that contraindicates surgery.
Good tear film and proper hygiene are essential because Ortho-K lenses are overnight contact lenses and carry a small infection risk if not cared for correctly.
LASIK candidacy
LASIK is typically best for:
- Adults with a stable refractive error for at least 12 months.
- Patients with sufficient corneal thickness and regular corneal topography.
- Those who prefer a one-time procedure and are willing to accept the permanent nature of tissue removal.
LASIK is usually not recommended for growing children, patients with active corneal disease, severe dry eye, or certain autoimmune conditions.
Reversibility, safety, and long-term effects
Reversibility and risk profiles are major deciding factors.
Reversibility
Ortho-K is reversible. If you stop wearing the lenses, corneal shape gradually returns to baseline over days to weeks. LASIK is irreversible — the laser removes tissue permanently. Enhancements are possible after LASIK but carry additional risks.
Safety and common complications
Both options are generally safe when managed by experienced clinicians, but risks differ:
- Ortho-K: rare but potentially serious contact lens–related infections (microbial keratitis), lens-induced corneal staining, and temporary visual fluctuations. Strict lens hygiene and regular follow-up reduce risk.
- LASIK: flap complications (rare with modern techniques), postoperative dry eye, night-vision symptoms (glare/halos), and in very rare cases progressive corneal weakening (ectasia), especially if preoperative screening is inadequate.
Preoperative evaluation — including corneal topography, pachymetry (thickness), and ocular surface assessment — is critical to minimize risk for either modality.
Cost, convenience, and lifestyle considerations
Costs vary and should be weighed against lifestyle preferences and long-term goals.
- Ortho-K: higher upfront fitting and lens cost plus ongoing replacement lenses and regular follow-up visits. Many families view it as an investment in slowing myopia progression in children, potentially reducing future high myopia–related risks.
- LASIK: typically a one-time surgical fee (with occasional enhancement costs). Recovery is quick but may require time off work for the first day or two.
- Daily routine: Ortho-K requires nightly lens wear and strict cleaning; LASIK requires post-op drops and temporary activity restrictions but less daily maintenance long term.
Special situations and alternatives
Some eye conditions change the recommended approach.
- Children: Ortho-K is the preferred option for active myopia control. LASIK is not appropriate for children because their vision is still changing.
- Irregular corneas (e.g., keratoconus): Ortho-K is not typically used for moderate-to-advanced ectatic disease; instead, specialty options like scleral lenses can provide excellent vision and comfort. Our practice specializes in scleral lens fitting for such cases.
- Dry eye: pre-existing dry eye can worsen after LASIK. Treatments such as Low Level Light Therapy (LLLT) may improve the ocular surface and contact lens tolerance and can be part of pre- or post-treatment care plans.
Which is right for you?
Use this practical framework:
- If you are a child with progressive myopia: Ortho-K is often the best choice for both vision correction and slowing progression.
- If you are an adult seeking a permanent solution and have stable refraction and healthy corneas: LASIK may be appropriate.
- If you have thin or irregular corneas, significant dry eye, or want a reversible option: Ortho-K or specialty contact lenses (like scleral lenses) are safer choices.
Ultimately, the right option depends on a comprehensive eye exam, corneal imaging, and a personalized discussion of risks, benefits, and lifestyle goals.
At Evolutionary Eye Care our doctors are Therapeutic Optometric Glaucoma Specialists with specialized training in ortho‑k, scleral lenses, keratoconus management, and ocular surface therapies including LLLT. If you’re weighing Ortho‑K vs. LASIK for yourself or your child, schedule a consultation with our Houston team — we serve Sugar Land, Webster, and Downtown Houston — so we can evaluate your eyes and recommend the safest, most effective plan for your vision and long-term eye health.