What should I know before getting the KAMRA laser eye surgery procedure as a pilot?
I'm not clear if you are asking about LASIK or KAMRA, the former is accepted by the FAA, while there is no explicit mention of the latter procedure.

The procedure site itself mentions halos as one of the side effects of the procedure:


  The KAMRA inlay procedure may cause blurred vision, difficulties with contrast sensitivity, problems with night vision, double vision, ghost images, glare, halos, and color disturbances.


In general, people with such adverse effects and complications are not allowed to serve as airmen:


  The FAA expects that airmen will not resume airman duties until ... there are no significant adverse effects or complications (such as halos, rings, haze, impaired night vision and glare), ...  and reviewed by an Examiner or AMCD.


The medical certificate for a person who had undergone such procedures is contingent upon the absense of any side effects affecting vision:


  An applicant treated with a refractive procedure may be issued a medical certificate by the Examiner if ... the applicant does not suffer sequela such as; glare intolerance, halos, rings, impaired night vision, or any other complications


It would be better if you consult a doctor to find out if the procedure is suitable for you and possibility of side effects.