Uploaded May 2025 | Updated September 2026, 1 week ago

---

Why do points of light get spread into annoying lines of light at night but not during the day?

It turns out that your pupils dilating (opening up wide) at night exaggerates the effects of any eye errors you have... like astigmatism

This can make it really hard to drive at night, as headlights and streetlight can become blinding

Learn more about why some people see light lines at night and others don't in the full video on the Vision Vibes YouTube channel!

#vision #optometry #health #science #eyehealth #nightblindness #stem