My central corneal thickness is 450. and I have number of -10 in right and -8 in left eye.

Depending on your age, (over 40) a clear lens exchange (replace your lens with a multifocal lens implant) that allows near and far vision or (under 40) an implantable contact lens are your best options.  A clear lens exchange is "off-label".  Both options have risks that are beyond the scope of this reply but in skilled hands the risks are generally low.  

In view of you thin corneal status and high prescription LASIK survey would not represent a safe option. Your best choice would be to opt for Visian ICL surgery. The Visian lens implant can correct higher levels of near sightedness and is especially useful in addressing patients with thin corneas. The quality of vision delivered by the implant is astounding in our experience.