Night-driving glare and halos around headlights are one of the earliest and most disabling symptoms of cataracts. As the eye's natural lens clouds, it scatters incoming light instead of focusing it, so bright points at night smear into starbursts and haze. Private cataract surgery removes the clouded lens and replaces it with a clear IOL, eliminating the scatter and restoring crisp night vision. At our partner clinics, surgery starts from £2,900 per eye for an aspheric monofocal lens, £3,796 for EDOF, and £4,300 for multifocal IOLs — all-inclusive, usually within one to two weeks.
Why cataracts cause night-driving glare
Inside a healthy eye, the natural lens is crystal clear and focuses light to a single sharp point on the retina. As a cataract forms, the lens proteins clump and the lens becomes cloudy and uneven. Instead of passing straight through, light hitting the cataract is scattered in all directions. At night, when your pupil is wide and the only light sources are intense points — headlights, streetlights, illuminated signs — that scatter is at its worst.
The result is the classic pattern patients describe: dazzling glare from oncoming cars, halos or starbursts around every light, and a general haze that makes lane markings and pedestrians hard to see. Many people first notice a problem when they start avoiding night driving altogether.
Night-vision symptoms of cataracts
- Glare from oncoming headlights — dazzling, slow to recover from
- Halos and starbursts around streetlights and traffic lights
- Loss of contrast — kerbs, road edges and pedestrians fade into the dark
- Difficulty with reflective road signs in the headlight beam
- Slower glare recovery — vision takes longer to settle after a bright light passes
- Avoiding driving after dark — the practical impact on daily life
Failing the night-driving test? A cataract assessment includes biometry and a glare check to confirm whether a cataract is the cause and measure your eye for the right IOL.
Book a cataract assessmentChoosing a lens for the best night vision
Lens choice matters more than usual when your main complaint is night glare. Some premium lenses that maximise spectacle freedom can slightly increase night-time halos, while others are specifically designed to keep night vision clean. Your consultant will match the lens to your priorities and eye anatomy — if freedom from glare is the goal, that guides the recommendation.
Multifocal and trifocal lenses give the greatest spectacle independence, but by splitting light between focal points they can add some night-time halos — so if night-driving glare is your main concern, your surgeon may steer you toward an aspheric monofocal or EDOF. If you have astigmatism, a toric IOL corrects it and further sharpens night vision. See the full range on our implant lens options page and the EDOF lens cost guide.
What happens during cataract surgery
Cataract surgery is performed under local anaesthetic eye drops. You stay awake but feel no pain — only mild pressure and light. The procedure takes 15 to 25 minutes per eye, and you'll be at the clinic for around 2 to 3 hours including pre-op checks and post-op rest.
- Numbing drops are placed in your eye, and the surrounding skin is cleaned with sterile solution.
- The surgeon makes a tiny 2.2–2.8mm incision at the edge of your cornea — small enough to seal itself afterwards without stitches.
- Phacoemulsification is used: a fine ultrasound probe gently breaks up the cloudy lens and removes the fragments that were scattering light.
- Your chosen intraocular lens (IOL) is folded and inserted through the same incision, where it unfolds and locks into place.
- The eye is shielded and you rest for 30–60 minutes before going home.
Recovery & getting back to night driving
Most patients notice brighter, clearer daytime vision within hours. Glare and halos improve quickly too, but give the eye time to settle before resuming night driving — your surgeon will confirm when you meet the standard.
Day of surgery
Vision is hazy for a few hours. Eye shield worn overnight. No driving yet. Eye drops begin.
Days 1–3
Vision clears noticeably and colours brighten. Mild grittiness is normal. Daytime tasks resume.
Week 1
First review. Most patients meet the DVLA eyesight standard and return to daytime driving; night driving usually follows once glare has settled.
Weeks 2–4
Night vision continues to sharpen as the eye settles. Halos fade. New glasses prescription at week 4–6 if needed.
Beyond a month
Final vision is settled — most patients describe confident, comfortable night driving for the first time in years.
Cataract surgery must leave you meeting the DVLA number-plate and visual standards before you drive. Read our guides on meeting the DVLA eyesight rules, when you can drive after cataract surgery, and the DVLA eyesight standard clearance.
Cataract surgery cost
Our cataract surgery prices are all-inclusive: consultation, biometry, the surgery itself, theatre and hospital fees, your IOL of choice, post-op drops, and follow-up reviews. There are no hidden extras.
- Self-pay: from £2,900 per eye (aspheric monofocal); £3,400 toric; £3,796 EDOF; £4,300 multifocal.
- Insurance: recognised by Bupa, AXA, Aviva, Vitality, Cigna, WPA and others. We handle authorisation.
- Finance: 0% for 12 months — approximately £242/month for monofocal.
For the full breakdown, average UK costs and insurance details, see our cataract surgery cost guide, or learn more about the procedure itself on our cataract surgery page.