as from the history you have quoted you are having near sightedness or myopia
and your refractive power is -6 and -6.25 in your right eye and left eye respectively.
The surgical treatment
options available in your case are Laser refractive surgery
which can be LASIK, I-LASIK, ZYOPTIX
Phakic intraocular lens
Laser refractive surgeries are commonly done to correct myopia. Other surgeries like Phakic intraocular lens implantation are done in cases in which laser refractive surgeries cannot be done as in cases of presence of thin corneas.
Kindly do consult corneal surgeon who after evaluation and tests will be able to advice you the correct surgery depending on your needs.