Can the prescription lenses for X2 work for trifocal?
Yes, the lenses can be made for any lens type. But the real question is why you would want trifocal lenses given the lens size is so small. No problem from the technical standpoint though. We can make bifocal, trifocal, progressive, basically anything you'd want. But when the lens size is so small, the reading portion (bottom area) will be quite limited.