Would I be a candidate for corrective eye surgery with an eye sight power of +8.5 (farsightedness)?

At +8.50D you are beyond the range of what can or should be
treated with LASIK or other forms of laser corneal refractive surgery. These procedures steepen the cornea to
reduce farsightedness. The extreme
amount of steepening required to eliminate your degree of farsightedness would
be accompanied by an enormous risk of side effects such as poor quality of
vision, irregular astigmatism, and night side effects. The lasers used for LASIK cannot do
this high a degree of correction, and even if done in two sessions, it would be
a mistake, the quality of vision resulting would be poor.

You may be a candidate for an alternative form of refractive
surgery involving a lens implant or lens replacement.  Refractive lens exchange, or refractive
lensectomy, which involves removing your natural lens from inside your eye and
replacing it with an lens implant correctly powered to eliminate your
farsightedness, is an excellent option to consider. This procedure is
very similar to cataract surgery. The Visian ICL (Implantable Collamer Lens) procedure involves placing a contact-lens like implant inside the eye, in front of the natural lens of the eye, to treat your refractive error.  This procedure is currently FDA approved in the US for nearsightedness but not farsightedness.  At some point in the future, this may be an option for you, but not right now.

Hopefully this information helps!

Most Laser platforms for Lasik have a maximum of +6.00. Many surgeons have a lower maximum of +4-+5. Your Rx then is too high for Lasik. Generally with your level of hyperopia I would not suggest Lasik nor doing two Lasik treatments combined to achieve your +8.5 prescription. I would evaluate your eyes to see if you were a candidate for an lens implant inside your eyes. This could either be an ICL (Implantable collamer/contact Lens) or a refractive lensectomy (like cataract surgery). I hope this helps.