Halos after cataract surgery: why they occur and when they fade

Halos After Cataract Surgery: Are Trifocal Lenses Safe for Night Driving?

Many patients considering trifocal intraocular lenses ask: “Will I see halos when driving at night after cataract surgery?” The honest answer is: halos may appear initially.

Why Do Halos Occur?

Trifocal lenses provide clear vision at distance, intermediate and near by distributing light into different focal points. This optical principle can temporarily create:

• Rings around headlights
• Mild glare
• Starburst effects in low light

This is not a complication, but a known optical phenomenon.

Do Halos Go Away?

In the vast majority of properly selected patients, yes. Through neuroadaptation, the brain filters the phenomenon over weeks to months:

• Halos become weaker
• The brain filters them out
• Night driving becomes comfortable

Clinically, patients with trifocal lenses eventually perceive halos as minimal or irrelevant.

The Most Important Factor: Patient Selection

Halos are not just about the lens — they are about choosing the right candidate. I may avoid trifocal lenses in:

• Patients with nearly perfect vision and no visual complaints
• Individuals fully satisfied with glasses
• Unrealistic expectations
• Eyes with borderline optical quality

Thinking About Trifocal Cataract Surgery?

If you are considering premium cataract surgery in Costa del Sol, a proper evaluation is essential.

For more details, see our cataract surgery page. For assessment, book online.