I had LASIK a while ago and I have some halo effects when I look at lights at night, and was wondering if that alone is something that would disqualify me from being a pilot for the Air Force or an airline?
FAA doesn't allow airmen with complications like halos. etc. From FAA Guide for Aviation Medical Examiners:
The FAA expects that airmen will not resume airman duties until their treating health care professional determines that their post-operative vision has stabilized, there are no significant adverse effects or complications (such as halos, rings, haze, impaired night vision and glare)...
A medical examiner should certify that the applicant (for pilot) is not suffering from any such complications:
An applicant treated with a refractive procedure may be issued a medical certificate by the Examiner if the applicant meets the visual acuity standards and the Report of Eye Evaluation (FAA Form 8500-7) indicates that healing is complete; visual acuity remains stable; and the applicant does not suffer sequela such as; glare intolerance, halos, rings, impaired night vision, or any other complications.
USAF doesn't allow individuals with cases where the surgical outcome affects one's performance of duties; having a halo effect would be a disqualifier.