Driver Demographics and Trends
How Deteriorating Eyesight Affects Driving and What to Do About It
Last reviewed: 2026 · Driviology Road Safety Education Team
Quick Answer
Deteriorating eyesight can gradually reduce how well a driver reads signs, judges distance, and sees at night, which is why regular vision checks and updated corrective lenses matter, especially for older drivers.
Vision changes gradually enough that many drivers do not notice how much it has shifted until it is pointed out or tested formally.
Common Warning Signs
- Needing to squint to read signs you used to see clearly
- Increased difficulty with glare from headlights at night
- Slower recognition of pedestrians or hazards at a distance
Why This Matters More for Older Drivers
Vision changes are one factor behind the patterns discussed in our guide to the aging driving population, alongside changes in reaction time.
What to Do About It
Get regular vision testing, keep corrective lenses prescriptions current, and consider anti-glare coatings for night driving if glare has become more noticeable.