Short answer
Smart lens surgery, also called multifocal or refractive lens exchange, replaces the eye's natural lens with an artificial lens designed to focus at near, intermediate and far distances. Each eye typically takes 15-20 minutes under numbing drops, and most patients stay in Istanbul for 5-7 days. Vision usually improves within days, while the brain takes a few weeks to months to fully adapt.
What is smart lens surgery?
Smart lens surgery is an operation that replaces your natural lens with a permanent artificial lens that can focus at several distances. The technique is the same as modern cataract surgery, but the lens is chosen to reduce your need for glasses.
Multifocal and trifocal lenses split light into different focal points for near, middle and distance vision. Extended-depth-of-focus lenses give a smoother range with fewer night-time effects but may need reading glasses for fine print. Toric versions can also correct astigmatism. Because the natural lens is removed, you cannot develop a cataract later.
Who is it for?
Smart lens surgery is usually suited to adults over about 45 who have presbyopia, the age-related loss of reading vision, with or without short- or long-sightedness. It is also an option for people with early cataract, or whose prescription is too high for laser treatment.
A doctor assesses your suitability in person. Multifocal lenses may not suit people with certain retinal or optic nerve conditions, significant corneal problems, or those who drive a lot at night and are very sensitive to glare.
- Age around 45 or over
- Presbyopia, with or without other prescription
- Early cataract or prescription unsuitable for laser
How the procedure is done
Detailed measurements of the eye are taken first so the lens power can be calculated precisely. On the day, numbing drops are used and light sedation can be given if you are anxious.
The surgeon makes a tiny incision, breaks up the natural lens with ultrasound and removes it, then folds the new lens into place. No stitches are usually needed. The second eye is often treated a day or a few days later. Your hotel, VIP transfer and medical interpreter are arranged before you land.
Recovery and results
Most patients see better within a day or two, with check-ups the day after each eye. You use antibiotic and anti-inflammatory drops for several weeks, and avoid rubbing your eyes, swimming and heavy lifting for a short time.
Near, middle and distance vision continue to improve as the brain adapts to the new lens, which usually takes one to three months. Halos or glare around lights at night are common at first and often become less noticeable over time.
Risks and safety
Lens surgery is one of the most frequently performed eye operations, but it carries risks. Common effects include temporary dryness, glare and halos at night. Less common problems include inflammation, raised eye pressure, swelling at the back of the eye, and clouding of the lens capsule months or years later, which is treated with a quick laser procedure.
Rare but serious risks include infection inside the eye and retinal detachment, so it is important to report pain, worsening vision or flashes straight away. Careful screening, sterile technique and close follow-up keep these risks low.
Recovery timeline
- Day 1Measurements and first eye treated; rest at the hotel.
- Day 2-3Check-up, then second eye treated.
- Week 1Final check and flight home; daily eye drops.
- Month 1Most daily tasks done without glasses.
- Month 3Brain adaptation usually complete; vision stable.
Frequently asked questions
Will I never need glasses after smart lens surgery?
Many patients manage most daily tasks without glasses, but this is not guaranteed. Some still use reading glasses for very fine print or in low light.
How long do multifocal lenses last?
The artificial lens is designed to last for life and does not wear out. You also cannot develop a cataract in that eye afterwards.
Is smart lens surgery the same as cataract surgery?
The technique is the same, but the reason and the lens differ. Smart lens surgery uses a multifocal or extended-range lens chosen to reduce dependence on glasses.
Will I see halos at night after a multifocal lens?
Some halos or glare around lights are common, especially in the first months. They usually become less noticeable as the brain adapts.
Are both eyes done on the same day?
Usually not, as each eye is typically treated on separate days a short time apart. This allows the first eye to be checked before the second is treated.
