If your vision is blurred, ghosted, glary or less stable after LASIK, PRK, SMILE or an older refractive procedure, the first step is to identify why. Some people have a residual prescription that glasses or a conventional soft lens can correct. Others have dry eye, tear-film instability, irregular astigmatism or, less commonly, progressive corneal ectasia. These problems can feel similar, but they need different care.
When the cornea has become irregular, a custom rigid or scleral contact lens can create a smoother optical surface than glasses or a standard soft lens. This may improve clarity and reduce ghosting, particularly when spectacles no longer provide crisp vision. The lens supports visual rehabilitation while it is worn. It does not reverse the surgery, rebuild the cornea or treat progression, so any suspected ectasia must also be assessed and managed with an ophthalmologist.
At Vision Camberwell Optometrists, we assess the cornea, ocular surface and quality of vision before recommending a lens. The aim is not to assume that every post-surgery problem needs a scleral lens. It is to match the correction to the actual cause of your symptoms.
Contents
Why can vision change after refractive surgery?
Refractive surgery changes the shape of the cornea so that light focuses more accurately. LASIK, PRK and SMILE use different surgical techniques, while radial keratotomy, or RK, is an older incisional procedure rather than a laser procedure. Vision can change after any of these operations, but the reason and timing are not the same for every person.
Residual prescription or regular astigmatism
A small amount of short-sightedness, long-sightedness or regular astigmatism may remain after surgery or develop later. If the cornea remains regular, glasses or a conventional soft contact lens may provide clear, comfortable vision. Age-related focusing changes can also create a new need for reading or multifocal correction even when the surgical result remains stable.
Dry eye and an unstable tear film
The tear film is the first optical surface of the eye. When it is unstable, vision may fluctuate with blinking, screen use or time of day. Dryness, burning, grittiness and light sensitivity can accompany the blur, but some people mainly notice variable clarity. Dry eye is a recognised problem after corneal refractive surgery and requires its own assessment rather than being treated as an irregular-cornea problem by default. 1
Irregular astigmatism and higher-order aberrations
A cornea can be clear yet optically irregular. Instead of one smooth curve, different parts of the cornea focus light differently. This may cause ghost images, halos, starbursts, glare, reduced contrast or vision that does not become sharp with a new glasses prescription. These complex distortions are often described as higher-order aberrations.
Corneal ectasia after surgery
Post-refractive surgery ectasia is an uncommon but important condition in which the cornea progressively thins or steepens after LASIK, PRK or SMILE. It can cause increasing short-sightedness, irregular astigmatism and declining quality of vision. Published evidence confirms that ectasia has been reported after each of these procedures, although reported rates differ. 2
A contact lens can improve the optical result in an eye with ectasia, but it cannot determine or stop progression on its own. Serial corneal imaging and ophthalmology input may be needed. Current international consensus separates visual rehabilitation from treatment intended to stabilise progressive ectatic disease. 7
Long-term change after radial keratotomy
RK used radial incisions to flatten the cornea. Decades later, some eyes develop a long-sighted shift, irregular astigmatism or marked variation across the day. A 2024 case series examining people 20 to 30 years after RK found that rigid gas-permeable lens fitting was the most common refractive intervention for corneal irregularity in the university hospital cohort. 3
Why might glasses no longer be enough?
Glasses work best when the eye has a relatively regular optical shape. If different areas of the cornea bend light by different amounts, no single spectacle prescription may bring every part of the image into focus. Increasing the strength of the glasses can make one part clearer while leaving ghosting or distortion elsewhere.
A standard soft lens usually follows the underlying corneal shape closely. A rigid lens maintains its own front surface, allowing the tear layer beneath it to mask some of the corneal irregularity. The practical question is not whether one lens category is always best, but which design gives your eye the best combination of vision, comfort, health and realistic daily wear.
Which contact lenses can help after laser eye surgery?
Soft contact lenses
A soft lens may be appropriate when the residual prescription is regular and the ocular surface is healthy. Toric or multifocal designs may help with astigmatism or age-related near-vision needs. Soft lenses are usually not the first choice when the main problem is pronounced corneal irregularity.
Corneal rigid gas-permeable lenses
A corneal rigid gas-permeable lens is smaller than a scleral lens and rests on the cornea. It can provide strong optics for some irregular corneas. After refractive surgery, the central and peripheral corneal curves may differ substantially, so reverse-geometry or other custom designs may be considered. Lens movement, centration and comfort must be assessed carefully.
Hybrid lenses
A hybrid lens combines a rigid optical centre with a soft outer skirt. It may suit selected eyes when rigid optics are helpful but a different wearing experience is preferred. It is not automatically more comfortable or healthier than other options, and the fit still needs to respect the altered corneal shape.
Scleral lenses
A scleral lens is a larger rigid lens that vaults over the cornea and lands on the white of the eye. The space beneath the lens is filled with preservative-free sterile saline before insertion. The fluid reservoir and rigid front surface create a new optical system over the irregular cornea.
Evidence supports scleral lenses as a useful visual rehabilitation option after refractive surgery. A study of 36 post-RK eyes found significantly better contact lens-corrected than spectacle-corrected vision, although corneal scarring and treatment-zone decentration affected outcomes. 4 In eyes with post-LASIK ectasia and other ectatic conditions, scleral lenses have also been shown to improve visual acuity and reduce higher-order aberrations. 5 Reviews describe their role in managing irregular corneas and other complications after refractive surgery. 6, 8
Not every person needs a scleral lens. They require careful fitting, training and follow-up, and the best choice depends on corneal shape, ocular-surface health, visual goals, dexterity and previous lens experience.
How we assess vision after laser eye surgery
A useful assessment begins with the story of your vision. We ask which procedure you had, when it was performed, whether the change was sudden or gradual, how your vision varies through the day and what happens with blinking. We also review previous lenses, dry-eye treatment, eye rubbing, allergies, other eye conditions and any advice from your surgeon.
Refraction and visual-quality testing
A refraction checks whether a conventional glasses prescription can still provide clear vision. We also compare letters on the chart with your real-world symptoms. Good high-contrast acuity does not always explain glare, ghosting or poor night vision, so the pattern of symptoms matters.
Corneal topography and tomography
Corneal topography maps the front surface of the cornea. Corneal tomography examines the front and back surfaces and the distribution of corneal thickness. Used together, these measurements help us understand the altered shape after surgery, identify irregularity and recognise patterns that may require ophthalmology review.
Ocular-surface and tear-film assessment
We examine the eyelids, tear film and corneal surface because dryness can blur vision and affect contact lens tolerance. Treating the ocular surface may improve both the accuracy of measurements and the eventual wearing experience.
Diagnostic lens trial
Where a rigid or scleral lens may help, a diagnostic lens lets us assess the immediate optical potential and how the lens aligns with the eye. The first trial is informative, but it is not the final result. Custom parameters are refined through fitting visits, handling training and follow-up after the lens has settled during wear.
What result can you expect?
The goal is clearer, more stable and more useful vision, not a promise of perfect vision. The likely result depends on the cause and severity of the irregularity, corneal scarring, retinal and optic-nerve health, tear-film stability and how much higher-order aberration remains after a well-fitted lens.
Many people notice that a rigid optical surface reduces blur and ghosting that glasses could not correct. Some still experience residual glare or night-vision symptoms. In selected cases, advanced optical designs may be discussed after a stable, healthy lens fit has been achieved. Advanced optics are a later optimisation step, not a substitute for getting the basic fit, ocular surface and prescription right.
Comfort and handling are also part of a successful result. A technically sharp lens is not useful if it cannot be worn safely for the periods you need. We therefore assess vision, lens alignment, corneal response, wear time, insertion and removal, cleaning and your day-to-day goals together.
Contact lenses do not replace ectasia care
This distinction is important: a contact lens corrects vision while it is on the eye. It does not strengthen a cornea or show by itself whether the shape is changing. If imaging, prescription change or symptoms suggest progression, we may recommend co-management with a corneal ophthalmologist. Treatments such as corneal cross-linking sit within ophthalmic care and have a different purpose from contact lens rehabilitation. 7
If you have already undergone cross-linking, intracorneal ring treatment or another corneal procedure, a contact lens assessment can still be considered once your treating ophthalmologist confirms that the eye is ready. The design may need to account for the new shape and any ocular-surface sensitivity.
When should you seek urgent review?
Contact our practice, your surgeon or an urgent eye-care service promptly if you develop sudden loss of vision, significant eye pain, increasing redness, marked light sensitivity, discharge, a new corneal haze or symptoms after an eye injury. Do not wait for a routine contact lens appointment if the change is sudden or the eye is acutely uncomfortable.
For a gradual change in clarity, increasing ghosting or a prescription that no longer stays stable, arrange a comprehensive assessment. Earlier comparison with previous maps is helpful when ectasia is a concern.
Preparing for your appointment
Bring any available operative reports, pre-surgery measurements, previous corneal maps, ophthalmology letters and a list of current eye drops. Bring all current glasses and contact lenses, including lens packaging or parameters if available. If you already wear rigid or scleral lenses, ask our team before the appointment how long they should be left out. The answer depends on the lens and the purpose of the visit, so a single withdrawal time is not appropriate for everyone.
Contact lens assessment in Camberwell
Vision Camberwell Optometrists provides corneal imaging and custom contact lens assessment at 784 Burke Road, Camberwell VIC 3124. We welcome patients from Camberwell and across Melbourne, as well as elsewhere in Victoria.
Consultations are available in English, and in Mandarin with Jue Wang. To discuss an assessment after refractive surgery, contact our team or phone (03) 9882 5666.
Frequently asked questions
Can I wear contact lenses after LASIK, PRK or SMILE?
Often, yes. The suitable lens and timing depend on healing, corneal shape, tear-film health and the reason correction is needed. If your surgery was recent, lens fitting and wear should be coordinated with your treating surgeon and depend on healing and clearance.
Why is my vision blurry if my glasses prescription is correct?
A glasses prescription corrects lower-order blur such as short-sightedness, long-sightedness and regular astigmatism. An irregular cornea can also create complex optical distortions that glasses do not neutralise fully. Corneal imaging and a diagnostic rigid-lens trial can help show whether irregular optics are contributing.
Are scleral lenses always the best option after laser eye surgery?
No. A soft lens may be enough for a regular residual prescription, while a corneal rigid, hybrid or scleral design may be considered for irregularity. The best option is the one that meets your visual needs while fitting safely and remaining practical to wear.
Can a scleral lens stop post-LASIK ectasia?
No. A scleral lens can improve vision while it is worn, but it does not stabilise progressive ectasia. Monitoring and any treatment intended to slow progression require appropriate ophthalmology care.
Can contact lenses help after radial keratotomy?
They can help many post-RK eyes, especially when irregular astigmatism or daily fluctuation limits spectacle vision. Outcomes vary with the size and position of the treatment zone, scarring, ocular-surface health and other eye conditions. 3, 4
Will a scleral lens remove all glare and ghosting?
It may reduce these symptoms substantially, but complete elimination cannot be promised. Residual symptoms can come from remaining higher-order aberrations, tear-film issues, corneal scarring, cataract, retinal disease or other causes. We assess these factors before discussing advanced optical options.
Can you review contact lenses fitted elsewhere?
Yes. Bring the lenses, cases, solutions, prescription details and any fitting records you have. We can assess vision, fit, ocular health and whether modification or refitting is appropriate.
What if I have dry eye as well as an irregular cornea?
Both issues need to be considered. A scleral lens may provide an optical and fluid reservoir over the cornea, but it is not a universal dry-eye treatment. Lid disease, inflammation, tear quality, medication and lens tolerance still require individual assessment.
Do I need a referral?
You can contact us directly. We also accept referrals from optometrists, ophthalmologists, GPs and other health professionals. If progression or another surgical issue is suspected, we will recommend appropriate ophthalmology involvement.
References
- Dossari SK. Post-refractive Surgery Dry Eye: A Systematic Review Exploring Pathophysiology, Risk Factors, and Novel Management Strategies. Cureus. 2024;16(5):e61004.
- Moshirfar M, Tukan AN, Bundogji N, et al. Ectasia After Corneal Refractive Surgery: A Systematic Review. Ophthalmology and Therapy. 2021;10(4):753–776.
- Iwamoto Y, Koh S, Inoue R, et al. What Happens 20 to 30 Years After Radial Keratotomy? Case Series. Eye & Contact Lens. 2024;50(7):329–331.
- Chu HS, Wang IJ, Tseng GA, et al. Mini-Scleral Lenses for Correction of Refractive Errors After Radial Keratotomy. Eye & Contact Lens. 2018;44 Suppl 2:S164–S168.
- Kumar M, Shetty R, Khamar P, et al. The effect of scleral lenses on vision, refraction and aberrations in post-LASIK ectasia, keratoconus and pellucid marginal degeneration. Ophthalmic and Physiological Optics. 2021;41(3):664–672.
- Barone V, Petrini D, Nunziata S, et al. Impact of Scleral Lenses on Visual Acuity and Ocular Aberrations in Corneal Ectasia: A Comprehensive Review. Journal of Personalized Medicine. 2024;14(10):1051.
- Gomes JAP, Hafezi F, Ambrósio R Jr, et al. Global Consensus on Keratoconus and Ectatic Diseases, Edition 2. Cornea. 2026;45(7):888–908.
- Parminder A, Jacobs DS. Advances in scleral lenses for refractive surgery complications. Current Opinion in Ophthalmology. 2015;26(4):243–248.
Reviewed by Dr Shonit Jagmohan, Optometrist. Last reviewed October 2026.
Visit us in Camberwell
T. (03) 9882 5666
E. vision@visioncamberwell.com.au
Find Us at:
784 Burke Rd, Camberwell
Victoria 3124, Australia
Opening Hours:
Monday, Tuesday and Friday. 9am – 6pm
Wednesday. 9am – 5pm
Thursday. 10.30am – 7.30pm
Saturday. CLOSED
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T: (03) 9882 5666
Serving Camberwell and the Surrounding South Eastern Suburbs
An independent practice in Camberwell since 1951, we are experts in specialty contact lenses, including fittings after a corneal graft. We welcome patients from Hawthorn, Deepdene, Surrey Hills, Balwyn, Kew, Canterbury, Box Hill, Glen Iris, and across greater Melbourne.
