Q1: Why do LED headlights look like giant starbursts to me but normal to my passengers?
A1: An irregular corneal surface bends incoming light rays unevenly across multiple axes. If you have uncorrected or under-corrected astigmatism, your dilated nighttime pupils channel high-intensity LED light over these asymmetrical contours, turning pinpoint diodes into wide spires, streaks, and halos.
Q2: Can an updated optometry eye exam solve my night glare problems?
A2: Yes. Astigmatism can shift by small increments, as little as 0.25 to 0.50 diopters of cylinder, without causing noticeable blur during sunlit hours. In low-light conditions, that slight discrepancy generates severe flare. A comprehensive refraction exam confirms your cylinder and axis values are dialed in precisely.
Q3: Do polarized glasses help reduce oncoming LED headlight glare at night?
A3: No. Polarized lenses are engineered strictly for daylight glare management. Because polarizing films block substantial light, often cutting transmission down to 15% to 20%, wearing them after dusk dangerously limits overall visibility and violates optical safety standards.
