I understand these complications are rare beyond 6 months but what percentage of these complications become permanent?

I have terrible glares, halos, and photosensitivity since lasik which was performed 8 months ago. It is affecting my work terribly. I have seen 3 opthalmologist who cannot identify any problems with my eye . I am wearing glasses to correct my refractive error, and use tear drops every few hours to moist the eyes. I am wearing the darkest sun glasses to go out in day .I understand these complications are rare beyond 6 months but what percentage of these complications become permanant?