Night driving glare in Metro Manila: how lens coatings help

Driving home at night through EDSA traffic, oncoming headlights and bright LED signage can turn into halos, starbursts and streaks that make the road harder to read. Some glare is normal for everyone after dark, but if it feels heavy, there are real causes and real fixes.

Why glare gets worse at night

In the dark, your pupils widen to let in more light. A wider pupil uses more of the edge of your eye's optics, where small imperfections have a bigger effect, so points of light like headlights spread and flare. Add modern LED headlights and signage, which are intense and blue-rich, and the effect is stronger. Here are the usual culprits behind heavy glare:

• An out-of-date or uncorrected prescription, including small amounts of astigmatism, which smears points of light into streaks.
• Reflections off your lens surfaces, which bounce stray light into your eyes.
• Dirty or scratched lenses, which scatter light.

How anti-reflective coating helps

An anti-reflective coating is a thin layer applied to the lens that cuts reflections off its front and back surfaces. Instead of bouncing around, more light passes cleanly through to your eye. For night driving that means fewer reflections of headlights and dashboard lights, cleaner contrast, and less of the haze that sits over everything. It also makes your lenses look clearer to other people, since they are not catching reflections. This is one of the most worthwhile upgrades for anyone who drives after dark.

Start with the right prescription

No coating fixes a grade that is off. If your astigmatism is uncorrected or your prescription has drifted, points of light will flare no matter what. An up-to-date prescription, built accurately into the lens, does the heavy lifting. A coating then refines what is left.

Simple habits that also help

• Keep your lenses and windshield clean, inside and out.
• Dim your dashboard lights so your eyes stay adjusted to the dark.
• Look slightly toward the left edge of your lane when a bright car approaches, rather than straight into the lights.

When glare is a signal, not a nuisance

If night glare has grown noticeably worse, or comes with fading or cloudy vision, do not just work around it. Changes in how you see light at night can have causes worth checking, and an eye test is the way to rule them in or out.

Visit Vision Express or book a Vision7 eye test. We will confirm your prescription and build lenses with anti-reflective coating made for the way you drive at night.