# Are You a Candidate for Smart Lens Surgery? Find Out in 5 Questions **Kaskaloglu Eye Hospital | Izmir, Turkey | EyeTravelTurkey.com** --- You've been considering smart lens surgery — also known as refractive lens exchange (RLE) or premium IOL surgery. You've looked at the costs, you've thought about travelling to Izmir, and you're interested. But before anything else, one question needs an answer: **Are you actually suitable?** This article won't replace a proper eye examination — nothing can. But by working through these five questions honestly, you'll arrive at your consultation far better informed, with clearer expectations and better questions to ask. > **Important note:** This article is for general guidance only. Definitive candidacy assessment requires a comprehensive ophthalmic examination. These questions are a starting point — not a diagnostic tool. --- ## Question 1: How Old Are You? **If you're 40 or over, you're in the most natural candidate group for smart lens surgery.** From around age 40–45, the eye's natural crystalline lens gradually loses its flexibility — a condition called **presbyopia**. It's the reason you've started holding your phone further away, struggling to read in dim light, or reaching for reading glasses you never needed before. Smart lenses (trifocal and EDOF) replace this natural lens entirely. They are designed to restore clear vision at multiple distances and are most effective in the **45–70 age range**, where presbyopia is well established and the benefits of a premium lens are most fully realised. **If you're under 40:** Smart lens surgery is less likely to be the recommended route. Laser vision correction (LASIK or SMILE Pro) is usually the preferred option for younger patients without significant presbyopia. However, some exceptions apply — particularly for patients with high prescriptions or corneas unsuitable for laser treatment, where a phakic intraocular lens (ICL) may be considered instead. --- ## Question 2: What Vision Problems Do You Have? Smart lenses are particularly compelling for patients with more than one vision issue, because they can address several problems in a single procedure. **Smart lens surgery is likely a strong option if:** - You have **both distance and near vision problems** — myopia or hyperopia alongside presbyopia - You have **astigmatism** — both trifocal and EDOF lenses come in toric versions that correct astigmatism at the same time - You have **early or developing cataracts** — smart lenses can be implanted during cataract surgery, correcting your vision problem and removing the cataract in one operation - You have a **high prescription** and your corneas are too thin for laser correction — lens-based surgery bypasses the cornea entirely **Situations where other options may be more appropriate:** - You have only a very low prescription (mild myopia or mild hyperopia) — laser treatment may be simpler and equally effective - Your prescription is still changing — most surgeons prefer to wait until your prescription has been stable for at least one to two years - You are under 40 with no presbyopia — the benefits of a premium multifocal lens are much reduced without presbyopia --- ## Question 3: How Is Your General Health? Smart lens surgery is performed under local anaesthetic eye drops in around 8–10 minutes per eye. It does not require general anaesthesia. Nevertheless, certain health conditions are worth discussing with your surgeon. **Well-controlled chronic conditions are generally not a barrier.** Many of our international patients with treated hypertension, thyroid conditions, or stable cardiac conditions undergo surgery successfully. What matters is that your conditions are monitored and controlled. **Conditions that require more careful assessment include:** - **Poorly controlled diabetes:** High blood glucose impairs healing and increases infection risk. If you are diabetic, your HbA1c level will be considered as part of your pre-operative assessment. - **Autoimmune conditions:** Rheumatoid arthritis, lupus, Sjögren's syndrome, and similar conditions can affect ocular surface health and healing. These are not automatic disqualifications, but they require individual evaluation. - **Immunosuppressive medication:** Patients taking immunosuppressants for any reason need individual assessment. - **Active eye infection or inflammation:** Any active infection or inflammatory episode affecting the eye needs to be resolved before surgery can be planned. --- ## Question 4: Is Your Eye Structure Suitable? This is the question that only an examination can answer definitively — but knowing what will be assessed helps you understand the process. **Corneal health:** Unlike laser surgery, smart lens implantation does not operate on the cornea. The natural lens inside the eye is removed and replaced. This means corneal thickness — so critical for LASIK — is not a direct barrier for lens surgery. However, overall corneal health and surface quality are assessed as part of evaluating the eye as a whole. **Keratoconus:** If you have keratoconus (a condition causing progressive corneal thinning and irregular curvature), premium multifocal lenses may not be appropriate. The optical irregularity of a keratoconic eye can significantly reduce the performance of trifocal or EDOF optics. **Intraocular pressure:** Elevated eye pressure is the key indicator of glaucoma. Patients with known glaucoma or ocular hypertension are assessed individually. Stable, well-controlled glaucoma is not necessarily a barrier — but your surgeon must be aware of it and factor it into the plan. **Retinal health:** Conditions affecting the macula — macular degeneration, diabetic maculopathy, epiretinal membrane — require careful evaluation before premium lens implantation. In some retinal conditions, a standard monofocal lens may deliver better outcomes than a premium multifocal. **Dry eye syndrome:** Mild to moderate dry eye is common and manageable. It does not typically prevent surgery but does need to be addressed before the procedure. Severe dry eye is treated and stabilised first; surgery proceeds once the ocular surface is healthy. **Previous eye surgery:** Patients who have had prior laser vision correction (LASIK, PRK, SMILE) can often still have smart lens surgery, but the previous surgery affects certain measurements and calculations. Our diagnostic equipment — including the Zeiss IOLMASTER 700 and Pentacam HR — is specifically used to ensure accurate lens power calculation in these cases. --- ## Question 5: Are Your Expectations Realistic? This may not seem like a clinical question, but it's one of the most important. Smart lenses produce excellent results in the right patients. The majority of our patients leave surgery living glasses-free or nearly glasses-free. But "glasses-free" has a specific meaning — and aligning your expectations with reality makes for a much more satisfying outcome. **Realistic expectations:** - Most patients drive, work, socialise, travel, and manage daily life entirely without glasses - Some patients — particularly with EDOF lenses — may occasionally use a low-strength reading glass for very fine print or low-light close work - In the first weeks to months after surgery, some patients notice halos or glare around lights at night. This typically improves as the brain adapts (neuroadaptation) - Results vary between individuals — the same lens in two different eyes can produce slightly different outcomes **Signs that expectations may need calibration:** - Expecting absolute, total glasses independence under every possible condition - Very high intolerance for any adaptation period, including temporary night halos - Making the decision under pressure from others rather than from personal conviction These points aren't meant to discourage you — they're meant to ensure you arrive at your consultation with a clear picture of what you're choosing and why. --- ## In Summary: Who Is a Strong Candidate? You are likely a strong candidate if you: - Are in the **40–70 age range** - Have **presbyopia** alongside other refractive errors (myopia, hyperopia, astigmatism) - Are in **good general health**, or have chronic conditions that are monitored and controlled - Have **no known significant retinal disease** or keratoconus - Have **realistic expectations** and are making the decision for yourself You may need further discussion before proceeding if you: - Have **diabetes** but are unsure of your current HbA1c level - Have a **history of glaucoma** or elevated eye pressure - Have had **previous eye surgery** of any kind - Experience significant **dry eye symptoms** --- ## What Happens If You're Not Suitable? If your examination reveals that smart lens surgery isn't the right option for you, we'll tell you clearly and explain why. We may recommend treating a temporary condition first (such as dry eye), after which surgery can be reconsidered. In other cases, a structural finding may mean a different surgical approach is more appropriate. An honest answer before surgery is the most valuable thing we can give you. --- ## Planning Your Trip to Izmir Many international patients begin with a **remote pre-consultation** — sharing their prescription, any existing eye examination reports, and their questions with our patient coordinator Derya WhatsApp: +90 532 2722823 before booking travel. This allows us to give you an early assessment of suitability and help you plan your trip with confidence. The formal pre-operative examination takes place in person at Kaskaloglu Eye Hospital, typically the day before surgery. All diagnostics — Pentacam HR, iTrace, IOLMASTER 700 — are performed on-site. **[Start your remote pre-consultation →](https://www.eyetravelturkey.com/contact/)** --- *Kaskaloglu Eye Hospital has been performing premium intraocular lens surgery for patients from across Europe and beyond for over 30 years. Our international patient coordinator provides dedicated support in English from your first enquiry through to your post-operative follow-up.*
