I Have Halos and Starbursts One Year After PRK. No Scarring or Haze, and 20/20 Vision Besides That. What Are my Options?

I was operated with flying spot PRK and one year after the surgery I still see halos/starbursts at night. The darker it gets, the worse they are (when driving at night I see a big difference when I turn on/off the cabin light). The treatment zone was more than 9mmx8mm for one eye and 10mmx9mm for the other. My pupils do dilate easily beyond 7-8mm in low light and the starbursts/halos follow closely their reaction to more/less light.