Skip to content
Shaarawy Cornea Clinic logo
Cataract lenses: EDOF

EDOF lenses for cataract surgery

Medically reviewed by Dr. Ahmed Shaarawy2026-10-23Review policy

An EDOF (Extended Depth of Focus) lens is an intraocular lens implanted during cataract surgery in place of the clouded natural lens. It stretches a single focal point into a continuous range from distance to intermediate, giving comfortable vision for driving and computer work with fewer night halos than multifocal lenses, at the cost of slightly weaker reading of very small print. Dr. Ahmed Shaarawy chooses the lens after the pre-operative measurements.

Book a consultationالعربية ↗

Continuous vision from distance to intermediate with fewer night halos: what an EDOF lens is, and who it suits compared with trifocal and monofocal lenses.

Watch on AAOSmart Splash (DALK)Graft Exchange after DALK
Cataract surgery with EDOF intraocular lens with Dr. Ahmed Shaarawy, Shaarawy Cornea Clinic

Why choose us

International standard. Regional access.

Distance: excellent

Driving, television and faces are sharp, as with a monofocal lens.

Intermediate: excellent

Computer screens, the car dashboard and cooking distance are the strength of EDOF.

Near: good, not perfect

Reading very small print is about one line weaker than with a trifocal, and many patients keep light glasses for fine print.

Night: fewer halos

Night halos are fewer than with multifocal lenses, which is why EDOF is often chosen by people who drive at night.

Common questions

Frequently asked.

What is an EDOF lens?
An EDOF (Extended Depth of Focus) lens is an intraocular lens implanted during cataract surgery in place of the clouded natural lens. It stretches one focal point into a continuous range from distance to intermediate, giving comfortable vision for driving and screens with fewer night halos than multifocal lenses.
What is the difference between an EDOF lens and a trifocal lens?
A trifocal lens splits light into three focal points, which gives better near vision with more night halos. An EDOF lens stretches one focal point into a continuous range from distance to intermediate, which gives easier night driving and screen use and better contrast sensitivity, but reading very small print is about one line weaker and many patients keep light glasses for fine print. Published pooled analyses found little difference between the two in halos or in independence from glasses. The choice depends on what matters more to you: small print, or night and screens.
Who is an EDOF lens suitable for?
It often suits people who drive at night and use a computer and want continuous vision from distance to intermediate with fewer night halos. People who want the least possible dependence on glasses for fine reading may be better suited to a trifocal lens. Dr. Ahmed Shaarawy chooses the lens after the measurements (biometry, topography, OCT).Compare all cataract lens types
Does an EDOF lens correct astigmatism?
Astigmatism correction with an EDOF lens is partial. Toric lenses exist to correct astigmatism, and the pre-operative examination decides which lens fits the astigmatism in your eye.
How much does an EDOF lens cost?
The price depends on the lens type, and the published price for each category includes the intraocular lens itself. The cataract surgery price for each lens category, including EDOF, is on our cataract lens prices page.Cataract lens prices and types

Book your consultation

Pick a day and time. The first visit is an eye exam with Dr. Ahmed Shaarawy, who tells you which option suits your eyes.

Not sure which lens suits your eye?

Book a consultation with Dr. Ahmed Shaarawy. The measurements before surgery decide whether an EDOF lens or another lens type suits you.

Book a consultationChat on WhatsApp

Medical references

  1. MacRae S, Holladay JT, Glasser A, et al. "Special report: American Academy of Ophthalmology Task Force consensus statement for extended depth of focus intraocular lenses." Ophthalmology. 2017;124(1):139-141. PMID 27743644. The standard definition of an EDOF lens.
  2. Kohnen T, Suryakumar R. "Extended depth-of-focus technology in intraocular lenses." J Cataract Refract Surg. 2020;46(2):298-304. PMID 32126045. How the different EDOF designs work.
  3. Kanclerz P, Toto F, Grzybowski A, Alió JL. "Extended depth-of-field intraocular lenses: an update." Asia Pac J Ophthalmol. 2020;9(3):194-202. PMID 32511121. An updated review of EDOF lenses.
  4. Liu J, Dong Y, Wang Y. "Efficacy and safety of extended depth of focus intraocular lenses in cataract surgery: a systematic review and meta-analysis." BMC Ophthalmol. 2019;19:198. PMID 31477053. EDOF versus monofocal and versus trifocal lenses.
Contact us on WhatsApp
BookCallWhatsApp