Will I need glasses after cataract surgery in the UK?

Monofocal IOL (NHS standard)

Clear distance vision for ~95% of patients, but reading glasses are still needed for close work. Modest residual astigmatism may also need a thin distance prescription.

EDOF (extended depth of focus)

Distance + intermediate covered well; many patients use phones and computers without glasses. Readers may still be needed for very small print.

Multifocal or trifocal

Up to 80% glasses-free for suitable patients across distance, intermediate and near. Trade-off: some halos around lights at night, especially in the first 3–6 months.

1) Biometry accuracy

Your surgeon measures the eye precisely using optical biometry (e.g., IOLMaster) to choose lens power. Modern measurements are accurate to within ~0.25 dioptres in most eyes, which is why outcomes are so much better than 20 years ago.

2) Pre-existing astigmatism

Astigmatism over 0.75–1.0 dioptres blurs vision regardless of IOL choice unless corrected. Either choose a toric IOL or pair surgery with limbal relaxing incisions or laser refractive enhancement afterwards.

3) Ocular surface health

Untreated dry eye or blepharitis can blur post-op vision and is a common reason for “the lens isn’t working.” Pre-operative ocular surface optimisation is now standard practice.

4) Macular and retinal health

Conditions like macular degeneration, epiretinal membrane or significant glaucoma damage limit best achievable vision regardless of lens choice and may rule out multifocal IOLs.

5) Lifestyle and visual demands

A keen reader, computer-heavy office worker, or night-time driver each have different needs. Honest discussion of your daily activities drives the best lens choice.

6) Personality and tolerance

Some patients adapt quickly to multifocal halos. Others find them bothersome. A frank conversation about how you handle visual compromise (e.g., are you happy with progressive glasses?) helps your surgeon recommend the right lens.

What’s usually included

• Initial consultation and biometry
• Surgery in a private ophthalmic theatre
• The IOL itself
• Post-operative drops and review appointments
• Cover for unplanned care related to surgery

What may cost extra

• YAG laser capsulotomy if posterior capsule clouds later (typically £550–£700)
• Laser enhancement if a small refractive error remains
• Treatment of unrelated conditions (e.g., glaucoma, retinal disease)
• Updated glasses prescription afterwards (if needed)

Will I need glasses after cataract surgery?

It depends on the intraocular lens (IOL) you choose. With a standard monofocal lens (the NHS default), about 95% of patients see clearly at one distance — usually distance vision — but still need reading glasses for close work. Multifocal, trifocal and extended depth of focus (EDOF) lenses can reduce dependence on glasses to 10-20% of activities for most suitable patients.

What does the NHS provide as standard for cataract surgery lenses?

The NHS provides a standard monofocal intraocular lens free of charge as part of cataract surgery. This is set for clear distance vision in most cases, so reading glasses are usually still needed afterwards. Premium lenses (multifocal, EDOF, toric) are not routinely available on the NHS and require private treatment.

What's the difference between monofocal, multifocal and EDOF lenses?

Monofocal lenses focus light at a single distance (usually distance), so you typically still need reading glasses. Multifocal lenses have multiple focal zones so most patients can read, use a phone, drive and watch TV without glasses. EDOF (extended depth of focus) lenses give a continuous range of vision from intermediate to distance with smoother transitions and fewer night-vision halos than older multifocal lenses, but readers may still be needed for very fine print.

Do I need a special lens if I have astigmatism?

If you have significant corneal astigmatism (typically over 0.75 dioptres), a toric lens is recommended. Toric IOLs correct astigmatism at the same time as cataract surgery and are available in monofocal, EDOF and multifocal versions. Without a toric lens, you may need glasses for clear distance vision even after cataract surgery.

How much do premium lenses cost privately in the UK?

In 2026, private cataract surgery in the UK typically costs £1,995 to £3,600 per eye for a standard monofocal lens. Premium lens packages run higher: toric monofocal from around £2,800 to £3,800 per eye, multifocal or trifocal from £3,500 to £4,500 per eye, EDOF from £3,300 to £4,200 per eye, and toric multifocal from around £4,000 to £4,800 per eye.

Can I get my reading vision back without losing distance vision?

Yes — multifocal and trifocal lenses are designed exactly for this, giving useful vision at near, intermediate and distance. EDOF lenses give very strong distance and intermediate vision and useful close vision, which suits most everyday tasks but may still require reading glasses for very small print. Suitability is decided by your surgeon after biometry, ocular surface assessment, and a discussion of your lifestyle.

What are the downsides of premium lenses?

Multifocal and trifocal lenses can produce halos or starbursts around lights at night, which most patients adapt to within 3 to 6 months but a small minority find bothersome. EDOF lenses generally have fewer halo effects than multifocals. Premium lenses also cost more and aren't suitable for every eye — for example, certain retinal or corneal conditions can rule them out.

How long after cataract surgery should I update my glasses prescription?

Most surgeons advise waiting four to six weeks after cataract surgery for the eye to settle and the prescription to stabilise before getting a new pair of glasses. If you have surgery on both eyes, the second eye is usually done a couple of weeks after the first, so a final glasses prescription is typically taken six to eight weeks after the second eye.

Editorial details

Written by:

Eye Surgery Clinic Editorial Team

Reviewed by:

Consultant Ophthalmic Surgeon (UK GMC-registered)

Last updated:

April 2026

How we put this guide together

• Clinical guidance: Royal College of Ophthalmologists cataract surgery guidance and IOL selection consensus statements.
• IOL platform data: manufacturer clinical study data (Alcon, Johnson & Johnson, Rayner) and independent peer-reviewed trials.
• Spectacle independence rates: published European multicentre studies of multifocal and EDOF IOL outcomes (2022–2025).
• UK pricing: PHIN-listed self-pay providers and major UK private ophthalmology clinics, sampled early 2026.
• Editorial review: reviewed by a UK GMC-registered consultant ophthalmic surgeon before publication.