The high pressure, an inside the eye problem, may not be related to the LASIK. You require a work up to rule out Glaucoma and Ocular hypertenison. Elevated pressures are an extremely rare extended side effect, usually limited to the use of steroids for a month or so immediately after the surgery event.
The pain you report may be related to corneal dystrophy, chronic dry eye or even Sjogrens, despite your youth. These are outside the eye problems related to the surface of the eye, Cornea problems are more often induced by LASIK.

That a surgeon would perform LASIK on a 10 year old especially 12 years ago, calls to question ethics, motivation and clinical understanding of the developing paediatric eye.

Douglas Smith