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Phakic IOL · EVO ICL · Eye treatments

EVO ICL Surgery in Turkey — Reversible Phakic Lens Implant at Eyeglow Istanbul

STAAR Surgical EVO ICL implantation — the FDA-approved phakic intraocular lens for high myopia, thin corneas and dry eye patients who are not candidates for LASIK. Led by our refractive surgical team. Reversible refractive surgery, written quote, complication insurance and a year of structured aftercare.

Cross-section diagram of an EVO ICL positioned between the iris and the natural crystalline lens — phakic lens implant surgery at Eyeglow Health, Istanbul
Procedure time15–20 min per eye
AnaesthesiaTopical drops
Hospital stayDay case
Functional vision24 hours
Time in Istanbul4–5 nights
Follow-up1 year structured
What it is

What is EVO ICL & phakic lens implantation?

EVO ICL (Implantable Collamer Lens) is a phakic intraocular lens placed between the iris and the natural lens to correct myopia, hyperopia and astigmatism — without removing any corneal tissue or replacing the natural lens. The procedure takes 15 to 20 minutes per eye, is fully reversible, and gives functional vision within 24 hours.

At Eyeglow Health in Istanbul, EVO ICL is performed with the FDA-approved STAAR Surgical EVO Visian platform (US approval March 2022; CE-marked in Europe since 2011). The lens is made of Collamer — a proprietary collagen-copolymer biocompatible with the eye for decades, with peer-reviewed safety data extending past 10 years (Alfonso 2019; Igarashi 2014). Each lens is custom-ordered to your individual eye after biometry — sizing matters as much as power, and STAAR offers four diameters (12.1, 12.6, 13.2, 13.7 mm) to match your corneal anatomy.

EVO ICL is the appropriate refractive choice for several patient profiles where LASIK is not safe: high myopia (–10 D and above), thin corneas, moderate-to-severe dry eye, or patients who want a reversible refractive option in case their visual needs change later in life. It is not suitable for everyone — shallow anterior chambers, low endothelial cell counts, narrow-angle glaucoma or early cataract all require a different pathway. That assessment belongs to a surgeon who has personally reviewed your anterior segment OCT and endothelial cell count, not to a marketing brochure.

How it works

From first consultation to recovery at home

  1. 01

    Online consultation

    You share recent prescription, prior corneal topography (if available) and any prior LASIK / contact-lens history. Our refractive surgical team reviews your case and confirms whether your prescription range, anterior chamber depth and endothelial cell count make ICL the right choice over LASIK or SMILE — before a quote is issued.

  2. 02

    Pre-operative imaging in Istanbul

    On day 1 we measure your anterior chamber depth (must be ≥2.8 mm), white-to-white horizontal corneal diameter (for ICL sizing — 12.1, 12.6, 13.2 or 13.7 mm), endothelial cell count (must be ≥2,200 cells/mm²), pupil dynamics, IOL Master biometry and macular OCT. These are the inputs that determine ICL power and size — not your prescription alone.

  3. 03

    ICL ordered to your eye

    Once measurements are confirmed, our refractive surgical team orders your EVO ICL (or Toric EVO ICL if astigmatism above 1.0 D) directly from STAAR Surgical. The lens is custom-manufactured to your exact dioptric power and corneal diameter. Delivery typically takes 7–14 days, so most patients schedule the procedure 2–3 weeks after the initial consultation.

  4. 04

    The procedure (15–20 minutes per eye)

    Both eyes are treated 1–7 days apart. A 2.8 mm corneal incision is created, the foldable EVO ICL is injected into the posterior chamber and centred between the iris and the natural lens. The EVO platform has a central 360 µm CentraFLOW port — so a peripheral iridotomy is no longer needed, unlike the older V4 Visian ICL. Topical anaesthetic; mild sedation available.

  5. 05

    Day 1 and day 7 reviews

    You return the morning after surgery and again before flying home. Most patients see clearly enough to drive within 24 hours; visual recovery is faster than LASIK because the cornea is not reshaped — vision corrects through an internal lens, not surface tissue. A protective shield is worn for the first two nights.

  6. 06

    One-year structured aftercare

    Scheduled video reviews at one, three, six and twelve months — with annual endothelial cell-count monitoring afterwards. Your coordinator stays the same. Because ICL is reversible, if your prescription drifts later in life (e.g. presbyopia in your 50s), the ICL can be removed and a Smart Lens implanted instead — a unique advantage of the phakic IOL pathway.

Compared to LASIK / SMILE / Smart Lens

EVO ICL vs LASIK vs SMILE vs Smart Lens

EVO ICL is one of four refractive pathways at Eyeglow. The right choice depends on prescription range, corneal anatomy and whether reversibility matters to you:

AspectEVO ICLLASIKSMILESmart Lens
Best forHigh myopia (–3 to –20 D), thin cornea, dry eye, athletesMild-to-moderate myopia, hyperopia, astigmatism with healthy thick corneaModerate myopia, thinner cornea than LASIK thresholdPatients over 50, cataract or presbyopia correction
Reversibility✓ Lens can be removed or exchanged✗ Permanent corneal reshape✗ Permanent corneal lenticule removal✗ Natural lens removed permanently
Cornea preserved✓ No corneal tissue removed✗ Stromal ablation + flap✗ Stromal lenticule✓ Cornea preserved, lens replaced
Recovery time24 hours functional24–48 hours4–6 days24–72 hours
Dry eye riskMinimal (no nerve transection)Moderate (flap nerve transection)Lower than LASIKMinimal
Night vision qualityExcellent (no halos in EVO)Mild halos initiallyMild halos initiallyHalos with multifocal IOLs
Upper prescription limitUp to –18 to –20 D myopia~–10 D myopia~–10 D myopiaAny (lens-based)
Pricing

EVO ICL pricing

All-inclusive Eyeglow package pricing. Your final, personalised quote is confirmed after imaging review — with no obligation.

Procedure Eyeglow price (all-inclusive)
EVO ICL Surgery — per eye, all-inclusive€4,500 – €6,000
Package transparency

What's included in your EVO ICL package

Included in package

  • Pre-op imaging (anterior chamber depth, white-to-white, endothelial cell count, pupil dynamics, IOL Master biometry, macular OCT)
  • Surgeon-led consultation + ICL sizing review (our refractive surgical team)
  • EVO ICL or Toric EVO ICL — STAAR Surgical custom-ordered to your eye
  • Phakic IOL implantation (both eyes, scheduled 1–7 days apart)
  • 5-star hotel — 4 nights
  • VIP airport transfers (return)
  • All post-op drops + aftercare kit
  • Day-1, day-7, 1m, 3m, 6m, 12m follow-up reviews
  • Annual endothelial cell-count monitoring (year 1 included; year 2+ remote review)
  • Multilingual coordinator — 24/7
  • Complication insurance — covers eligible post-operative medical complications during the recovery period at our partner accredited hospital (issued in line with the Turkish Ministry of Health International Health Tourism Authority Certificate)

Paid separately

Items below are not part of the medical package — your coordinator helps you arrange them at no markup.

  • Flights to/from Istanbul
  • Personal expenses
  • Lens exchange in case of prescription drift after year 5 (quoted separately if ever required)
  • Unrelated medical treatments
  • Travel insurance (flight cancellation, baggage, general trip cover) — separate from the medical complication policy above; your coordinator can recommend a provider at no markup
Our team

The surgeons who will care for you

Your procedure is carried out by our refractive surgical team at our partner accredited hospital in Istanbul. Their training and sub-specialty focus are shown below.

Medically reviewed by Assoc. Prof. Dr. Muhammet Derda Özer, FICO

Candidacy

Are you a candidate for EVO ICL?

You may be a good candidate if

  • You are aged 21 to 45 with a stable prescription for at least one year.
  • Your myopia is between –3 and –20 dioptres, or hyperopia up to +10 D, with or without astigmatism up to 6 D (Toric EVO ICL).
  • Your anterior chamber depth is ≥2.8 mm and endothelial cell count is ≥2,200 cells/mm².
  • Your cornea is too thin for LASIK, or you have moderate-to-severe dry eye that excludes flap-based refractive surgery.
  • You want a reversible refractive option in case your visual needs change later (e.g. early cataract or presbyopia in your 50s).

A different pathway may be safer if

  • Anterior chamber depth below 2.8 mm — risk of crowding and endothelial cell loss.
  • Endothelial cell count below 2,200 cells/mm² — long-term lens tolerance compromised.
  • Active iritis, uveitis or any uncontrolled intraocular inflammation.
  • Cataract above an early stage — Smart Lens / cataract surgery is the more durable option.
  • Narrow-angle glaucoma or untreated angle anatomy — risk of post-op intraocular pressure rise.
  • Pregnancy or breastfeeding — ICL surgery is postponed.

Disclaimer. Information on this page is consistent with American Academy of Ophthalmology (AAO) Refractive Surgery Preferred Practice Pattern, American Society of Cataract & Refractive Surgery (ASCRS) consensus, FDA EVO ICL approval (March 2022, STAAR Surgical), and long-term FDA post-market safety data. It is educational and not a clinical recommendation. The only reliable way to know whether EVO ICL is the right option for you is a surgeon-reviewed evaluation based on biometry, anterior segment OCT, endothelial cell count and pupil dynamics — which is why our consultation is free of charge and free of obligation.

Risks & outcomes

Realistic outcomes — the risks that actually matter

Every refractive procedure has measurable risks. We list them here in the same plain language our surgical team uses in your consultation:

Endothelial cell loss

Long-term studies (Alfonso et al. 2019; STAAR FDA post-market) show approximately 6 to 8 percent cell loss at 5 years — well within the acceptable safety threshold for the corneal endothelium. We monitor cell count at year 1 and annually thereafter.

Intraocular pressure rise

EVO ICL's CentraFLOW port largely eliminates the older Visian iridotomy requirement. Transient IOP spikes in the first 24 hours are uncommon (<3%) and resolve with topical medication. Long-term glaucoma risk is rare with proper anatomy screening.

Cataract development

Approximately 1–2% lifetime risk of anterior subcapsular cataract — typically late-onset (>10 years). The advantage of ICL is reversibility: if cataract develops, the ICL is removed and replaced with a Smart Lens / IOL in a single staged procedure.

Lens repositioning or exchange

Around 1% of patients require ICL repositioning or size exchange within the first year, typically because the initial sizing was at the borderline. Eyeglow includes one repositioning procedure within 12 months at no extra surgical fee.

FAQ

Frequently asked questions about EVO ICL

What is EVO ICL surgery and how does it work?

EVO ICL (Implantable Collamer Lens) is a phakic intraocular lens implanted between the iris and the natural lens to correct myopia, hyperopia and astigmatism — without removing or reshaping any corneal tissue. The procedure takes 15 to 20 minutes per eye under topical anaesthetic. EVO ICL is the latest generation from STAAR Surgical (FDA-approved in March 2022) and features a central 360 µm CentraFLOW port that maintains natural aqueous flow, eliminating the peripheral iridotomy required by older Visian V4 designs. The lens is made of Collamer — a proprietary collagen-copolymer biocompatible with the eye for decades.

How is EVO ICL different from older Visian ICL?

Three key differences. (1) CentraFLOW central port — EVO has a 360 µm hole in the centre of the lens that allows aqueous humour to flow naturally; older Visian V4 required a YAG laser iridotomy 1–2 weeks before surgery to create this flow path. (2) Material refinement — the latest Collamer formulation has improved optical clarity and reduced glistening compared with earlier generations. (3) Expanded sizing — EVO is available in 12.1, 12.6, 13.2 and 13.7 mm to fit a wider range of corneal diameters. EVO ICL became FDA-approved for use in the United States in March 2022; it has been available in Europe (CE-marked) since 2011.

ICL vs LASIK — which is better for me?

They serve different patient profiles. LASIK reshapes the cornea by removing stromal tissue — best for mild to moderate myopia (up to about –10 D), healthy thick cornea and minimal dry eye. EVO ICL adds a lens without removing tissue — best for high myopia (–10 to –20 D), thin cornea, moderate-to-severe dry eye, or patients wanting reversibility. Visual outcomes at one year are comparable in the overlapping prescription range, but ICL preserves more options later (the lens can be removed if your eye changes). Our refractive surgical team recommends one or the other based on your imaging — not as a preference.

Am I a candidate for EVO ICL?

You are typically a candidate if you are aged 21 to 45 with a stable prescription, myopia between –3 and –20 D (or hyperopia up to +10 D), anterior chamber depth ≥2.8 mm and endothelial cell count ≥2,200 cells/mm². You are not a candidate if your anterior chamber is too shallow, your endothelium is already compromised, or you have active intraocular inflammation, narrow-angle glaucoma, or early-stage cataract (in which case Smart Lens is the more durable option). Our refractive surgical team confirms candidacy after biometry, anterior segment OCT and endothelial cell count.

Is EVO ICL reversible?

Yes — this is the most important practical advantage of phakic IOLs over LASIK or SMILE. Because the natural lens and corneal tissue are untouched, the ICL can be removed at any point in the future. Surgeons typically exchange or remove an ICL when: a patient develops cataract later in life (ICL is removed and a Smart Lens implanted), the prescription drifts significantly, or — rarely — the sizing needs adjustment. The eye returns to its pre-implant refractive state when the lens is removed.

How long does EVO ICL surgery last?

The lens itself is designed to remain in the eye indefinitely. Long-term FDA post-market data and 10-year follow-up studies (Alfonso et al. 2019; Igarashi et al. 2014) show that the Collamer material remains optically stable and biocompatible at 10+ years. The clinical event that may require ICL exchange is cataract development — typically late in life (>10 years post-implant in 1–2% of cases) — at which point the ICL is removed during cataract surgery and a Smart Lens implanted in the same session.

How much does EVO ICL surgery cost at Eyeglow?

Eyeglow Health all-inclusive EVO ICL packages are €4,500 – €6,000 per eye, including STAAR Surgical custom lens, pre-op imaging, hotel for 4 nights, VIP transfer, complication insurance and one year of structured follow-up. Your final, personalised quote is confirmed after imaging review — with no obligation.

Does insurance cover ICL surgery?

In most countries no. ICL is classified as elective refractive surgery (correcting a refractive error rather than treating a medical disease), so private health insurance plans in the US, UK, Germany and most of Europe do not cover the procedure. Exceptions exist for very high myopia where ICL is the only viable correction option — some insurers will partially reimburse on case-by-case medical necessity. Eyeglow provides a written itemised invoice you can submit to your insurer; refund is at their discretion.

Can EVO ICL change my eye colour?

No. EVO ICL is implanted behind the iris in the posterior chamber, between the iris and the natural lens. It is not visible from outside the eye — your iris (the coloured part of your eye) remains entirely unchanged. The only refractive procedure that affects iris appearance is artificial iris implantation (a separate procedure for medical iris defect repair), which is not part of routine refractive surgery.

What are the realistic risks of EVO ICL surgery?

The risks that matter in practice are: (1) Endothelial cell loss — approximately 6 to 8 percent at 5 years (well within safety threshold for healthy starting count). (2) Transient IOP spike in first 24 hours — uncommon (<3%) and treated with topical drops. (3) Anterior subcapsular cataract development — 1–2% lifetime risk, typically late-onset; resolved by ICL removal + Smart Lens. (4) Repositioning or size exchange in first year — about 1%, included in package at no extra surgical fee. Severe complications (intraocular infection, sight-threatening events) are rare (<0.1%) — comparable to or better than LASIK long-term safety data.

How soon can I exercise, swim and resume normal activities?

Light walking and screen work are fine from day 1. Driving from day 2 (after the day-1 review). Gym, weight training, contact sports, and swimming should wait until the day-7 review — water exposure carries an infection risk during epithelial healing. Most patients are back to full activity within two weeks. Contact lenses are obviously no longer needed after EVO ICL.

Why choose Eyeglow Health over marketplace agencies?

Marketplaces (Bookimed, Flymedi, Whatclinic) refer you to several clinics and earn a commission per referral — your file rotates between coordinators and your surgeon is whoever the partner clinic happens to assign on the day. At Eyeglow Health your case is reviewed by our own cornea and refractive surgical team. You speak to one named coordinator from first message to your twelve-month follow-up. We are a specialist eye clinic with a dedicated ICL pathway — not a multi-procedure marketplace.
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