Every surgical procedure has boundaries — and knowing Contoura Vision’s limitations before you book a consultation is more useful than discovering them afterwards. The procedure has an excellent clinical track record for vision correction. But it is not universally suitable, it does not work beyond certain prescription ranges, and it carries some of the same structural trade-offs as standard LASIK. This article lays out the honest picture.
💡 Quick Highlights
- Contoura Vision is topography-guided LASIK — it maps and corrects corneal irregularities, not just refractive error.
- It works only within a defined prescription range. High myopia beyond −8.00 D or hyperopia above +3.00 D typically falls outside its correction capacity.
- Contoura creates a corneal flap — the same structural consideration that applies to standard LASIK remains.
- Post-operative dry eye is a common side effect, particularly in the first three to six months.
- It costs more than standard LASIK because of the advanced topography mapping equipment required.
- Flapless alternatives like SMILE Pro exist for patients where flap-based surgery is not the best fit.
What Contoura Vision Is
Contoura Vision is a form of topography-guided LASIK. Standard LASIK corrects the refractive error — the spherical and cylindrical power of your prescription. Contoura does that and goes further: it maps up to 22,000 points on the corneal surface and uses that topographic data to correct microscopic corneal irregularities alongside the refractive error. The result, for eligible patients, is typically better visual quality — sharper contrast, reduced halos, cleaner night vision — than standard LASIK delivers.
It is not a different category of surgery. It uses the same flap-creation mechanism as LASIK, the same recovery pathway, and the same excimer laser for ablation. What changes is the treatment plan driving that laser — and that data-rich plan is what justifies both the higher cost and the higher clinical expectations. For a detailed breakdown of the procedure itself, see our article on what Contoura Vision is.
The Real Limitations
Prescription Range — Not Unlimited
Contoura Vision is FDA-approved for myopia up to −9.00 D (with up to −3.00 DC of astigmatism) and hyperopia up to +3.00 D. In practice, most surgeons consider the reliable correction range for myopia to be around −8.00 D or below, since deeper ablations require more corneal tissue removal and increase regression risk.
If your prescription falls outside these ranges, Contoura is not a suitable option regardless of how well your corneal profile maps. You would be looking at alternatives — EVO ICL for very high myopia, or a phakic IOL approach — rather than any surface or flap-based laser procedure.
Candidacy Requirements Are Strict
Contoura requires adequate corneal thickness. The ablation removes tissue, and a minimum residual stromal bed thickness must remain to maintain corneal structural integrity. Thin corneas that do not meet this threshold disqualify candidates from any LASIK-family procedure, Contoura included.
Keratoconus — a condition where the cornea progressively thins and bulges — is an absolute contraindication. Active dry eye disease that is not controlled pre-operatively can also exclude candidacy, since Contoura exacerbates dry eye in the same way standard LASIK does, and starting from a compromised tear film baseline creates a difficult recovery. Prescription stability of at least 12 months is required. Patients under 18 are not operated on at Visual Aids Centre regardless of prescription. The full eligibility criteria are covered in our guide on who is eligible for Contoura Vision.
It Still Creates a Corneal Flap
This is the limitation that matters most for physically active patients. Contoura Vision is flap-based LASIK — the femtosecond laser creates a hinged corneal flap before the ablation. That flap is permanent. It does not fully integrate with surrounding tissue, and a direct high-force impact to the eye area can displace it — not just during the healing window but theoretically at any point post-operatively.
For patients involved in combat sports, high-impact athletics, or roles with ongoing physical contact risk, this is a structural consideration worth taking seriously. Flapless procedures like SMILE Pro avoid this entirely. Our comparison on SMILE Pro vs Contoura Vision covers how the two compare on this and other clinical dimensions.
Post-Operative Dry Eye
Contoura Vision disrupts the corneal sensory nerve network during flap creation — the same mechanism as standard LASIK. These nerves drive the lacrimal gland’s tear secretion signal, so their disruption causes reduced tear production in the weeks to months post-surgery. Most patients experience some degree of dryness, grittiness, and light sensitivity during the healing phase.
For patients with moderate pre-existing dry eye — even when controlled — this temporary worsening can be uncomfortable and may slow the visual stabilisation timeline. It is manageable with preservative-free lubricating drops and meibomian gland management, but it is not trivial for everyone.
The Cost Premium
Contoura Vision consistently costs more than standard LASIK. The reason is infrastructure: the procedure requires a Topolyzer Vario topography system (or equivalent) to generate the corneal map, in addition to the WaveLight excimer laser system for delivery. Clinics that offer Contoura Vision have invested significantly in this dual-platform technology, and that cost is reflected in the procedure pricing.
Whether the cost premium is justified depends on your candidacy profile and what your vision quality goals are. For patients with significant corneal irregularities — those who have noticed poor night vision, haloes, or reduced contrast sensitivity on glasses or contact lenses — the improvement Contoura delivers over standard LASIK can be clinically substantial. For patients with straightforward low-to-moderate prescriptions and regular corneal topography, standard LASIK may achieve equivalent outcomes.
When Contoura Vision Is Not the Right Choice
Contoura is not appropriate in several specific scenarios:
- Prescription beyond the approved range (see above)
- Corneal thickness below the safe ablation threshold
- Active or uncontrolled keratoconus, or suspect topography suggesting early ectatic disease
- Severe uncontrolled dry eye disease
- Unstable prescription — still changing year on year
- Athletes or professionals in high-impact roles who need a flapless surgical outcome
- Patients over 40 hoping to correct both distance and near vision — Contoura does not address presbyopia
Risks vs Benefits — Honestly Compared
⚠️ Risks & Limitations
- Corneal flap — permanent structural consideration
- Post-op dry eye for 3–6 months
- Not suitable for prescriptions beyond approved range
- Higher cost than standard LASIK
- Regression possible in higher myopia
- Requires adequate corneal thickness
- Does not correct presbyopia
✓ What Contoura Does Well
- Corrects corneal irregularities beyond refractive error
- Better night vision outcomes than standard LASIK for many patients
- Reduced halos and glare vs conventional ablation profiles
- Under 15 minutes per eye
- Quick visual recovery — functional within 24 hours for most
- Established FDA approval and clinical safety record
For a full picture of what Contoura achieves for eligible patients — beyond the limitations covered here — our dedicated article on the benefits of Contoura Vision is a useful companion read before making any decision.
How Long Do Contoura Vision Results Last?
The corneal reshaping Contoura performs is permanent — the tissue removed does not regenerate. For most patients with stable prescriptions, the correction holds for decades. The factors that can shift vision over time are the same ones that affect any LASIK-family procedure: presbyopia developing in the 40s (a lens change, not a corneal one), regression in very high prescriptions, and age-related conditions like cataracts that affect the lens rather than the cornea.
Enhancement procedures are possible for clinically significant regression, subject to adequate residual corneal thickness. Most patients who are well-selected — stable prescription, sufficient corneal thickness, appropriate refractive range — do not need enhancement.
Frequently Asked Questions
What prescription range can Contoura Vision correct?
Contoura Vision is FDA-approved for myopia up to −9.00 D with up to −3.00 DC of astigmatism, and hyperopia up to +3.00 D. In clinical practice, the reliable range for myopia is generally considered to be around −8.00 D or below, where ablation depth and regression risk are most manageable.
Is Contoura Vision better than standard LASIK?
For patients with corneal irregularities, Contoura typically delivers better visual quality — sharper contrast, reduced halos, better night vision — than standard LASIK. For patients with straightforward prescriptions and regular corneal topography, the clinical difference is smaller. Whether the cost premium is justified depends on your individual corneal profile, which a topographic assessment will clarify.
Can thin corneas get Contoura Vision?
No. Contoura Vision removes corneal tissue through ablation and requires a minimum residual stromal bed thickness post-ablation to maintain structural safety. Corneas below the thickness threshold for this requirement are not suitable for any LASIK-family procedure, including Contoura. ICL or phakic IOL procedures may be options for these patients.
Is Contoura Vision permanent?
The corneal correction is permanent — reshaped tissue does not regenerate. Vision may change over time due to presbyopia, regression in very high prescriptions, or age-related conditions affecting the lens rather than the cornea. These are independent of the Contoura procedure itself.
What makes Contoura’s limitations clinically important is not that they are severe — they are not — but that patients sometimes arrive at consultation expecting a universally superior procedure with no trade-offs. The topographic correction Contoura provides is genuinely valuable for the right corneal profile. The flap, the dry eye, the prescription ceiling — these are real constraints, and a consultation that glosses over them does the patient a disservice. At Visual Aids Centre, the pre-operative assessment for Contoura candidates includes full corneal tomography precisely because candidacy for this procedure is determined by objective measurements, not by what the patient hopes to hear. About Dr. Buckshey and Visual Aids Centre.
