Vision Correction Series
PRELEX Surgery
See clearly at every distance – for life.
If you’re over 40 and finding yourself reaching for your glasses more often – for your phone, a menu, or a book – you’re not alone. Presbyopia, the gradual loss of near vision that comes with age, affects nearly everyone. But it doesn’t have to be permanent.
PRELEX (Presbyopic Lens Exchange) is a safe, proven procedure that replaces your eye’s aging natural lens with a premium artificial lens designed to restore clear vision at near, intermediate, and far distances, commonly eliminating the need for glasses altogether.
At Surya Eye Hospital, our experienced eye surgeons use the latest technology and the highest-quality intraocular lenses to help patients see clearly again – with long-lasting results.
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What is PRELEX?
PRELEX stands for Presbyopic Lens Exchange. It is a vision correction surgery in which the eye’s natural lens – the part that has become stiff and unable to focus – is carefully removed and replaced with a premium artificial lens called an Intraocular Lens (IOL).
These specially designed lenses allow your eye to focus at multiple distances: reading, using a computer, and looking at objects far away. Many patients experience a remarkable improvement in day-to-day independence – no more hunting for glasses before reading a text message or a menu.
How is PRELEX different from cataract surgery?
The procedure is very similar to cataract surgery – but PRELEX is performed before cataracts form. Rather than waiting for your vision to worsen, PRELEX proactively replaces the aging lens, delivering both a clearer today and a protected tomorrow. Patients who have PRELEX will never develop a cataract in the treated eye.
Who is PRELEX Right For?
PRELEX is an ideal option for people who:
- Are 40 years or older and struggling with near vision
- Depend on reading glasses or bifocals for daily tasks
- Want a long-term, spectacle-free (or glasses-reduced) lifestyle
- Have stable vision and no severe eye conditions, such as glaucoma or advanced retinopathy
- Are not suitable candidates for laser eye surgery, such as LASIK
PRELEX can also correct other refractive errors at the same time, including nearsightedness (myopia), farsightedness (hyperopia), and astigmatism, making it a highly versatile solution for many adults.
Are you a candidate?
The best way to know is a thorough consultation at Surya Eye Hospital. Our specialists perform detailed eye measurements, including corneal mapping and lens power analysis, to determine whether PRELEX is right for you and which lens type will deliver the best outcome for your lifestyle.
Understanding Presbyopia
Your eye’s natural lens is flexible when you are young, effortlessly shifting focus between near and far. With age, usually from your mid-40s, this lens gradually stiffens, making it harder to focus on close-up objects.
You may notice presbyopia when you start:
- Holding your phone or book at arm’s length to see clearly
- Needing brighter light to read comfortably
- Experiencing eye fatigue or headaches after reading
- Finding it harder to focus on computer & mobile screens.
These are not signs of failing health, they are a normal part of aging. But PRELEX offers a way to address them permanently, rather than managing the symptoms with glasses year after year.
The PRELEX Procedure: What to Expect
PRELEX is a minimally invasive procedure that usually takes around 15 to 20 minutes per eye. It is performed under topical anesthesia (eye drops), so you remain comfortable and awake throughout. Here is how it works:
Pre-Surgery Consultation
Numbing the Eye
A Tiny Incision
Removing the Natural Lens
Implanting the New Lens
You Go Home the Same Day
Types of PRELEX Lenses
Not all eyes are the same, and neither are all PRELEX lenses. At Surya Eye Hospital, your surgeon will recommend the lens best suited to your vision needs and daily lifestyle:
Multifocal IOLs
Offer clear vision at two key distances – near and far. Ideal for patients whose main concern is reading and distance tasks.
Trifocal IOLs
Provide three focal points: near, intermediate (computer distance), and far. These are the most popular choices for today’s digital lifestyles.
Extended Depth of Focus (EDOF) Lenses
Create a continuous, smooth range of vision. These lenses are particularly well-suited to patients who want fewer halos or glare, especially at night.
Toric Multifocal Lenses
Correct astigmatism alongside presbyopia in one procedure – a great option for patients with corneal irregularities.
How Does PRELEX Compare?
Here is how PRELEX stacks up against LASIK and reading glasses:
| Aspect | PRELEX | LASIK | Reading Glasses |
|---|---|---|---|
| Corrects Presbyopia | ✓ Permanent fix | Partial | Temporary |
| Treats Myopia / Hyperopia | ✓ Yes | ✓ Yes | No |
| Prevents Future Cataracts | ✓ Yes | No | No |
| Clear Vision at All Distances | ✓ Near, intermediate & distance | Mainly distance | Near only |
| Glasses-Free Lifestyle | ✓ Largely yes | Will need reading glasses later | Must wear always |
| Suitable Over 40 | ✓ Ideal | Less suitable | Yes |
| Long-Term Solution | ✓ Lifetime | ✓ Yes | Needs frequent replacement |
For adults over 40 looking for a lasting, comprehensive solution, PRELEX consistently outperforms both laser surgery and optical aids, addressing the root cause of the problem rather than working around it.
Benefits of PRELEX: Life After Surgery
Patients who have had PRELEX at Surya Eye Hospital frequently describe the same experience: a sense of freedom. Here is what that freedom looks like:
- Read a book, a menu, or a text message without reaching for glasses
- Use your smartphone and computer comfortably throughout the day
- Drive confidently with clear distance vision
- Never develop cataracts in the treated eye as the artificial lens is permanent
- Enjoy a single procedure that corrects presbyopia, and potentially myopia, hyperopia, and astigmatism simultaneously
- Return to your routine within just a few days
For many patients, PRELEX is not merely a medical procedure, it is a quality-of-life transformation.
Recovery: Smooth, Fast, and Well-Supported
Most patients are pleasantly surprised by how quickly they bounce back. Here is a realistic timeline:
First 1-2 Days
Some mild light sensitivity or blurred vision is normal. This settles quickly for most patients.
First Week
Vision steadily improves. Prescribed eye drops help the eye heal and prevent any infection.
First Month
Your brain adapts to the new lens, and vision at all distances becomes increasingly crisp and natural.
Follow-Up Care
Your Surya Eye Hospital team schedules regular check-ins to monitor your healing and ensure optimal results.
Most patients return to work and light daily activities within 2-3 days. You will be guided throughout by your care team on what to avoid and when you can return to each activity.
Why Choose Surya Eye Hospital?
Choosing the right surgical team is just as important as choosing the right procedure. At Surya Eye Hospital, patients benefit from:
- Experienced ophthalmologists with a strong track record in advanced lens replacement surgery
- State-of-the-art diagnostic and surgical technology for precise, personalised treatment
- Individually tailored lens recommendations based on your eye’s unique anatomy and your lifestyle
- Comprehensive care from your first consultation through to your final follow-up
- A patient-first philosophy – your comfort, safety, and vision outcomes always come first
Our patients come to us tired of depending on glasses. They leave with the confidence to live fully and see clearly at every distance.
Safety & Considerations
As with any surgical procedure, it is important to be fully informed. Complications from PRELEX are rare, and the procedure has an excellent safety profile when performed by experienced surgeons. Possible side effects can include temporary blurring, mild glare or halos around lights at night, or dry eyes – most of which resolve as the eye heals.
A thorough pre-operative assessment at Surya Eye Hospital identifies any risk factors in advance, and your surgeon will walk you through everything before you decide. There is no pressure – only information, expertise, and your best interests at heart.
Ready to See More Clearly?
If you are tired of relying on reading glasses and want to understand whether PRELEX is right for you, take the first step with a personalized consultation at Surya Eye Hospital.
Our specialists will assess your eyes, answer every question, and help you decide — with no obligation.
Frequently Asked Questions
PRELEX lenses are designed to last a lifetime. Once implanted, the artificial intraocular lens does not degrade or wear out, meaning you will never need it replaced.
Yes. Both eyes can be treated, usually with a gap of a few days or a couple of weeks between procedures to allow the first eye to heal and stabilise before the second is treated.
Most patients notice an improvement in clarity after surgery. A small number of people experience temporary halos or glare around lights at night, but this generally fades as the brain adjusts to the new lens, usually within a few weeks.
Many patients are back on their devices within a day or two. Your surgeon will advise you based on your specific recovery, and regular screen breaks in the first week are recommended.
Yes. When toric intraocular lenses are used, PRELEX can correct astigmatism at the same time as presbyopia, addressing multiple vision issues in one single procedure.
Before PRELEX, your surgeon performs thorough measurements, including corneal topography, retinal analysis, and precise lens power calculations. These tests ensure the ideal lens is selected for your unique eyes.
Yes. Contact lens wearers are suitable for PRELEX. Your surgeon will generally ask you to stop wearing your lenses for a few days before pre-operative measurements, to ensure the readings are as accurate as possible.
Expert surgeons. Personalised care. Lasting results.
