Best Lens for Cataract Surgery: Do You Really Need a Premium Lens?

Anyone planning cataract surgery in Pune, or anywhere in India, is soon handed a menu of lenses: standard, toric, multifocal, trifocal, EDOF, “imported”, “premium”. The price can range from modest to several times higher for the same operation. As an eye surgeon, I want to explain in plain language what each type of cataract lens does, what the research shows, and how to decide which lens is right for your eyes, without being rushed into the most expensive one.

The short answer.

No, most people do not need an expensive lens to get excellent vision after cataract surgery. A good-quality standard (monofocal) lens, well calculated and well placed, gives clear distance vision to the large majority of patients. The more expensive lenses do one specific extra job each: correcting astigmatism, or reducing your need for reading glasses. They are worth paying for when that extra job matters to you and your eye is suitable for it, not because the package is called “premium”.

What you hear at the clinic.

The first line makes a standard lens sound second-rate. It isn’t. The second promises something no lens can guarantee. The third puts you under time pressure for a decision you will live with for the rest of your life. Let’s take them apart.

First, what the lens actually does.

A cataract is a clouding of the natural lens inside your eye. In surgery, the cloudy lens is removed and an artificial lens (intraocular lens, or IOL) is placed in the same position. It stays there permanently.

Your natural lens could change focus between far and near when you were young. That ability fades after about 40 to 45 (presbyopia), which is why people start needing reading glasses. An artificial lens cannot change focus the way a young natural lens does.

Every lens type is a different answer to that one problem:

1. Monofocal: focuses clearly at one distance, usually far. You wear reading glasses for near work.
2. Toric: a monofocal (or other) lens that also corrects astigmatism, so distance vision is sharp without glasses.
3. Multifocal / trifocal: splits light into two or three focus points (far, intermediate, near) so you need glasses less often.
4. EDOF (extended depth of focus): stretches one focus point into a longer range, covering far and arm’s-length (computer, dashboard) vision, with less near range than a multifocal.

“Premium” is not a medical term. It is a price category, and it usually means one of options 2 to 4.

The standard (monofocal) lens.

What’s true

It is the most widely implanted lens in the world, with the longest track record. Modern monofocal lenses are made of the same high-quality materials as premium ones, and they give the sharpest, highest-contrast vision at their chosen distance, with the fewest night-time side effects.

What’s left out

“Basic” does not mean poor quality. The main thing you give up is near vision without glasses. You will need reading glasses, and you may need glasses for astigmatism if you have a significant amount of it.

A useful variation

The surgeon can set one eye slightly for near (called monovision or mini-monovision). Many people then manage most daily tasks without glasses, at no extra lens cost. It isn’t for everyone, so ask if it can be tried with contact lenses first.

Does it matter for you?

For most people, especially those who drive at night, have other eye conditions, or don’t mind reading glasses, a monofocal lens is an excellent choice, not a compromise.

The toric lens (for astigmatism).

What it is

A lens with astigmatism correction built in. It has to be placed at a precise angle in the eye.

What’s true

This is the premium lens with the clearest evidence. A review of 13 randomised trials (about 1,400 eyes) found that people with a toric lens had better distance vision without glasses and were about half as likely to need glasses for distance as people with a standard lens, including those who had small corneal incisions to reduce astigmatism.¹ A Cochrane review comparing toric lenses with those incisions reached a similar conclusion: about 700 in 1,000 eyes ended up with very little astigmatism with a toric lens, against about 500 in 1,000 with incisions.²

What’s left out

It only helps if you have enough regular astigmatism in your cornea to correct. If your scans show very little, a toric lens adds cost and nothing else. If the lens rotates after surgery, the correction drops and it may need repositioning. It does not fix the need for reading glasses unless it is also a multifocal or EDOF design.

Does it matter for you?

Ask, “How much corneal astigmatism do I have, and is it regular?” If the answer is a meaningful amount, a toric lens is often money well spent.

Multifocal and trifocal lenses (“no glasses” lenses).

What’s true

They genuinely reduce dependence on glasses. A Cochrane review of 20 trials (about 2,000 people) found that people with multifocal lenses were less likely to need glasses than people with monofocal lenses, and distance vision was similar.³

What’s left out

The same review found that haloes (rings around lights) were more than three times as common, and glare was more common, with multifocal lenses.³ This happens because the lens splits incoming light between distances, so each image gets a share of it. Most people adapt over weeks to months, but some don’t, and a few need the lens exchanged. Contrast, especially in dim light, can be lower. And “never need glasses again” is not a promise: some people still use glasses for fine print, for long screen sessions or for night driving.

These lenses also need a healthy eye to work well. They are usually a poor choice if you have:

• macular problems (such as age-related macular degeneration or diabetic changes at the macula)
• glaucoma with visual field loss
• an irregular cornea, or a previous corneal problem
• significant dry eye that hasn’t been treated (it blurs the image these lenses depend on)
• a job or habit with a lot of night driving

Does it matter for you?

It can be life-changing for the right person with a healthy eye and realistic expectations. It is a poor buy for someone who was never asked about their night driving, their retina or their tolerance for haloes.

EDOF lenses (extended depth of focus).

What it is

A newer category that aims to give good distance and intermediate vision (computer, cooking, car dashboard) with fewer side effects than a multifocal lens.⁴

What’s true

For many people, intermediate vision is what they use most each day. EDOF lenses usually give more of it than a monofocal lens, and they usually cause fewer haloes than multifocal lenses.

What’s left out

Most people with EDOF lenses still need reading glasses for small print, such as a medicine label or a phone held close. Haloes and glare can still happen, just less often than with multifocals. The category is also loose: some lenses sold as “EDOF” are enhanced monofocals with only a modest extra range.

Does it matter for you?

A sensible middle option for an active person with a healthy eye who mostly wants freedom from glasses for computer and everyday tasks, and doesn’t mind readers for fine print.

At a glance.

Swipe sideways to see every column

Lens type	What it adds	Main trade-off	Reading glasses?	Usually suits
Monofocal	Sharp vision at one distance	No near focus	Yes	Almost everyone; night drivers; eyes with other conditions
Monofocal with monovision	Some near vision in one eye	Slightly less depth and sharpness for distance	Sometimes	People who tolerated monovision before
Toric	Corrects corneal astigmatism	Must stay at the right angle	Yes, unless combined with multifocal/EDOF	People with meaningful regular astigmatism
EDOF	Distance + intermediate range	Some haloes; limited near	Usually for small print	Active people with healthy eyes, heavy screen use
Multifocal / trifocal	Distance + intermediate + near	Haloes, glare, lower contrast in dim light	Often not	Healthy eyes, strong wish to avoid glasses, little night driving

The sales tactics to watch for.

These are practices, not people. Most surgeons do not behave like this, but patients should recognise it when it happens.

• The lens is sold before the eye is examined properly. A premium lens choice needs detailed measurements: corneal shape and astigmatism, eye length, and a check of the retina (often with an OCT scan of the macula). A price chosen before these tests is a price, not a recommendation.⁶
• The decision is pushed on the day of diagnosis. A cataract is rarely an emergency. You can take a week to think, talk to your family and ask questions.
• “Imported” is used as a quality label. Where a lens is made says little about whether it suits your eye. What matters is the lens type, its design and how accurately the power is calculated.
• The package price hides what you are paying for. A higher package may bundle the lens with a laser, a room category, extra tests or a brand name. Ask for each item separately.
• Laser cataract surgery is sold as safer. Large trials comparing laser-assisted cataract surgery with standard surgery (phaco) found similar results for vision and safety.⁵ It is a reasonable option, but not a reason by itself to pay much more.
• Nobody mentions the downsides. If you were told only what a lens adds, you were told half the story.

Questions to ask your eye doctor.

• Which lens do you recommend for my eyes, and why not the others?
• How much astigmatism do I have, and is it worth correcting with a toric lens?
• Is there anything in my retina, cornea or tear film that makes a multifocal or EDOF lens a bad idea for me?
• What will I still need glasses for with this lens?
• How common are haloes and glare with it, and what happens if I can’t adapt?
• Could monovision with a standard lens give me some of the same benefit?
• What exactly is included in each package price, and what is the cost of the lens alone?
• If the final result isn’t what we planned, what are my options, and are they included?

Frequently asked questions.

The bottom line.

A standard monofocal lens is not a cheap compromise. It is the right lens for a large number of people. Toric lenses have strong evidence when you have enough astigmatism. Multifocal and EDOF lenses can give real freedom from glasses, but they trade some quality of vision at night and they need a healthy eye. Pay more only when your doctor can explain, in terms of your measurements and your daily life, what the extra money will buy you. Never pay more because of a label, a deadline or a fear that the normal lens is not good enough.

Planning cataract surgery and unsure which lens suits you? A thorough evaluation, including corneal astigmatism, eye measurements and a check of the retina, is the right first step. You can book a consultation at EYON Eye and Laser Institute, Kharadi, Pune.

References.

1. Kessel L, Andresen J, Tendal B, et al. Toric intraocular lenses in the correction of astigmatism during cataract surgery: a systematic review and meta-analysis. Ophthalmology 2016;123(2):275–286. Link
2. Toric intraocular lens versus limbal relaxing incisions for corneal astigmatism after phacoemulsification. Cochrane Database Syst Rev 2019;CD012801. Link
3. de Silva SR, Evans JR, Kirthi V, et al. Multifocal versus monofocal intraocular lenses after cataract extraction. Cochrane Database Syst Rev 2016;12:CD003169. Link
4. American Academy of Ophthalmology EyeWiki. Extended Depth of Focus IOLs. Link
5. Day AC, Burr JM, Bennett K, et al. Femtosecond laser-assisted versus phacoemulsification cataract surgery (FACT): a randomised noninferiority trial. Lancet 2020;395:212–224. Link
6. American Academy of Ophthalmology. Cataract in the Adult Eye Preferred Practice Pattern, 2021. Link

This article is for general information only and is not medical advice. Your eyes need a full examination by a qualified eye specialist before any decision about surgery.

Dr. Bhalekar performs cataract surgery with both standard and premium lenses at EYON Eye and Laser Institute and has no financial ties to any lens manufacturer.

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