• Why do I get halos inconsistently when driving at night?


    Question:

    Why do I get halos while driving at night but only sometimes? I had LASIK surgery two years ago and have mild dry eye. Some nights I'll be fine, then others the lights are giant and blinding—why is it so inconsistent? 


    Answer:

    There are many causes of halo. Depending on your age, early hardening of the lens inside your eye (pre- or early- cataract changes), usually beginning at 50 years of age, can cause this. Astigmatism, dry eye, very wide dilation of the pupil in low light, and even under-correction (return of some of your nearsightedness), can cause halo. I would encourage you to return to your ophthalmologist for a reevaluation to seek out the exact cause.


    Answered By: