EDoF Lenses — Quick Answers
- How do EDoF lenses differ from trifocal lenses? Trifocal lenses provide excellent near vision, but their rings often cause halos around lights at night. EDoF, on the other hand, extends the focal range, offering good vision for computer use and night driving with less risk of glare.
- Does EDoF lens implantation hurt? No, the procedure is painless and stress-free thanks to precise local anesthesia, and it takes only about 15 minutes.
- Will I receive medical leave (L4) after EDoF lens implantation? Yes, medical leave is typically issued for 3 to 7 days after the procedure for each eye.
- Does the National Health Fund (NFZ) cover EDoF lenses? No, EDoF implants are only implanted privately, as the NFZ only covers the simplest monofocal lenses.
- How much does a potential laser touch-up (Bioptics procedure) cost after the surgery? If a microscopic residual refractive error remains after implant insertion, a laser corneal touch-up is possible as part of the Bioptics procedure for PLN 3,700 per eye.
EDoF Lenses: Smooth Vision for Distance and Intermediate Range, Fewer Nighttime Visual Disturbances
Warsaw · Krakow · Vienna · Zurich
EDoF (Extended Depth of Focus) lenses and Monofocal Plus lenses represent a revolution in refractive lens exchange (RLE) and cataract surgery. Their optics provide smooth, sharp vision from distance (driving) to intermediate range (computer monitor, dashboard) – without the bothersome halo effect at night, which often accompanies traditional multifocal lenses. These are Premium implants designed for active professionals, drivers, and individuals working with screens. The microsurgical procedure takes approximately 15 minutes, and we support your return to activity with medical leave (L4) and convenient financing through Santander Consumer Bank.
Why We Introduced EDoF Technology
With age, our natural lens loses elasticity (presbyopia), and eventually becomes cloudy (cataract). For years, trifocal lenses were the gold standard. They are excellent for reading, but their physics relies on diffractive rings, which can create halos around lights at night for some patients.
EDoF technology (Extended Focal Range) is a game-changer.
Thanks to advanced optics, EDoF lenses do not split light into three sharp, separate points. Instead, they “stretch” a single focal point, creating a smooth, continuous channel of focus from the horizon to your laptop screen.
Choosing the Right Lens for Your Lifestyle
Most clinics in Poland cooperate with a single lens manufacturer. We believe this is a mistake. Your eye is unique. That’s why at SwissLaser, we work with a broad portfolio of EDoF and Monofocal Plus implants:
- Johnson & Johnson: PureSee (latest generation without diffractive rings) and Eyhance (Monofocal Plus lens, ideal for professional drivers).
- Bausch + Lomb: LuxSmart, LuxLife, enVista Envy, and enVista Aspire – innovative optical platforms with phenomenal contrast and depth.
- Alcon: Vivity – EDoF technology with extended depth of focus, maintaining contrast similar to a monofocal lens.
- Rayner: RayOne EMV – British technology designed for smooth and natural vision in all lighting conditions.
Dr. Victor Derhartunian uses precise optical biometry and MS39 tomography to thoroughly analyze your optical system and select a model that perfectly suits your profession and lifestyle.
Which Premium Lens is Right for You?
We are 100% transparent with you. Here’s how EDoF technology compares to NFZ and our trifocal lenses:
| Feature | Standard (NFZ – Monofocal) | Premium (EDoF / Monofocal Plus) | Premium (Trifocal) |
| Distance Vision (Driving) | Excellent | Excellent | Excellent |
| Intermediate Distance (PC) | Blurred (requires glasses) | Smooth and Sharp (Natural) | Sharp |
| Near Reading (Book) | None (mandatory glasses) | Good (slight reading glasses may be needed for very small print) | Full independence |
| Halo Effects at Night | Minimal | Very Low (Ideal for night driving) | Moderate (Requires neuroadaptation) |
| Cataract Protection | Yes | Yes (Lifetime guarantee against cataracts) | Yes |
| Astigmatism Correction | Usually none | Yes (Toric version of EDoF lenses) | Yes (Toric version) |
The Cost of Compromise
Sticking with progressive glasses is not only physical discomfort (neck pain from forced posture at the monitor) but also a huge financial cost. Good progressive lenses cost around PLN 3,000-5,000 every few years. Over a decade, you will spend a fortune on them, and in old age, cataract surgery will still await you.
Lens replacement (RLE) with a new-generation implant (e.g., PureSee or LuxSmart) is an investment that pays off quickly. Thanks to the MediRaty (Santander Consumer Bank) financing option at SwissLaser, you can convert the one-time cost of the procedure into convenient monthly installments, freeing yourself from the optician forever.
Step-by-Step Treatment Process
- Swiss MS39 Qualification: We use tomography and advanced biometry to calculate implant power with sub-micron precision. We select a specific lens model (e.g., Rayner EMV or J&J Eyhance) perfectly suited to your daily tasks.
- Microsurgical Procedure (15 min): Through a 2-millimeter, self-sealing incision, Dr. Derhartunian replaces your aged, natural lens with a lifelong EDoF implant. The procedure is painless (topical anesthesia).
- Return to Life (L4) and Swiss Umbrella: You rest at home for a few days. We issue medical leave (L4) so your eyes can adapt to the new conditions in peace. Moreover, in the event of a microscopic residual refractive error, the clinic offers the possibility of a Bioptics procedure (laser corneal touch-up, PLN 3,700 per eye), providing the ultimate safety net for your vision.
Most Frequent Patient Questions
How do EDoF lenses differ from trifocal lenses?
Trifocal lenses provide excellent near vision (reading), but their rings often cause halos around lights at night. EDoF “extends” the focal range (like a slide), offering good vision for computer use and night driving, with less risk of glare. The compromise is that slight reading glasses may be needed for very small print.
Why does SwissLaser offer so many models (PureSee, LuxSmart, EMV, Eyhance)?
There is no single “best” lens for everyone. Each model from the latest generation has different optical characteristics. J&J Eyhance (Monofocal Plus) is brilliant for professional drivers. PureSee or LuxSmart offer excellent contrast and a wider range for computer use. We select the implant based on your eye’s anatomy (MS39 maps) and your profession.
Does EDoF lens implantation hurt?
No. The procedure is painless and stress-free. We use extremely precise local anesthesia (eye drops). The procedure takes only about 15 minutes.
Will I receive medical leave (L4) after the procedure?
Yes. We respect your time and healing process. We issue medical leave (L4) typically for 3 to 7 days after the procedure for each eye.
Does the National Health Fund (NFZ) cover EDoF or Monofocal Plus lenses in cataract surgery?
No. The National Health Fund in Poland only covers the simplest monofocal lenses (after which patients usually still wear glasses). EDoF implants are exclusively implanted privately.
How do installments work with Santander Consumer Bank (MediRaty)?
We handle the formalities at the clinic during your qualification visit. The process is maximally simplified (often only an ID card is sufficient). The credit decision is made within 15 minutes, and the cost of the procedure is spread over convenient installments.
What is the Bioptics procedure?
Eye biology can be unpredictable. If a microscopic residual refractive error (e.g., 0.5 diopters) remains after Premium implant insertion, SwissLaser offers the option of a laser corneal touch-up (Bioptics procedure, PLN 3,700 per eye) to strive for absolute optical perfection.
What is “Secondary Cataract” and the YAG procedure?
For some patients, a few months after RLE, the capsule with the new lens may naturally and slightly cloud. We resolve this quickly in the office using a YAG laser in 60 seconds. This is a painless procedure that permanently restores ideal sharpness.
Can I have both eyes operated on at once?
In intraocular microsurgery, in accordance with rigorous Swiss safety standards, we usually operate on one eye, and the second eye at a safe interval (from a few days to several weeks). This minimizes the risk of complications.
I have astigmatism. Will EDoF lenses work for me?
Yes. All modern lenses in our portfolio (including PureSee, LuxSmart, or Rayner) are available in Toric versions. The cylinder built into them corrects astigmatism during the same procedure.
Can an EDoF lens expire in the eye?
No. Modern implants are made of highly biocompatible acrylic materials. They remain in your eye for life, do not cloud, and do not wear out.
Does Dr. Victor Derhartunian personally perform the surgery?
Yes. The medical director of SwissLaser, Dr. Victor Derhartunian (FEBO, FWCRS), personally conducts advanced MS39 qualifications, selects the lens model, and performs the microsurgical procedure.
How quickly after the procedure can I return to computer work?
Thanks to EDoF technology, you will notice a huge difference in comfort when working at a monitor after just a few days (during the medical leave period). Full vision stabilization may take several weeks.
Can I develop cataracts in the future after RLE with an EDoF lens?
No. This is physically impossible. Your natural lens (prone to clouding) is completely and permanently replaced by a modern EDoF implant.
How to prepare for the MS39 qualification examination?
Stop wearing soft contact lenses for at least 7 days before your visit. Use preservative-free moisturizing eye drops intensively – the healthier the eye surface, the more precise the lens selection measurements we can perform.
Unsure if EDoF lenses are right for you? Compare lens types and see what suits your lifestyle.
Content fact-checked by Dr. med. univ. (Vienna) Victor Derhartunian, FEBO, FWCRS – specialist in refractive surgery. Last verified: October 2, 2026.
For the curious: EDOF (extended depth of focus) is a class of intraocular lenses with extended depth of focus: instead of several distinct foci, they create a single focus stretched along the visual axis (diffractive, refractive, or spherical aberration-based designs). They provide distance and intermediate vision, while near vision usually requires weak reading glasses for small print; in return, halos and glare are less than with trifocal lenses. ICD-10 indications: H52.4 presbyopia, H25/H26 cataract; toric variant for H52.2.
Sources
- Kohnen T, Suryakumar R. Extended depth-of-focus technology in intraocular lenses. J Cataract Refract Surg 2020;46(2):298–304. doi:10.1097/j.jcrs.0000000000000109
- Rampat R, Gatinel D. Multifocal and extended depth-of-focus intraocular lenses in 2020. Ophthalmology 2021;128(11):e164–e185. doi:10.1016/j.ophtha.2020.09.026
- Alió JL, Plaza-Puche AB, Férnandez-Buenaga R, Pikkel J, Maldonado M. Multifocal intraocular lenses: an overview. Surv Ophthalmol 2017;62(5):611–634. doi:10.1016/j.survophthal.2017.03.004
