Lenses Come With Metal Frame and Ready for Use.      We custom-make lenses based on your prescription, complete with a metal frame designed for seamless compatibility with Xreal, ensuring they are ready for immediate use upon delivery. 5 Coatings of Our Lens:  Anti-Scratch, Anti-Static , Anti-UV ,ANTI-Reflection, Easy to Clean SPH stands for sphere, indicating myopia (nearsightedness) or hyperopia (farsightedness). The 'CYL' and 'Axis' are required for astigmatism. The "+" sign in SPH refers to farsightedness, while the "-" sign refers to nearsightedness. Double-check that you have selected the correct sign. You can chat with us in the lower right corner of the website. We will be happy to answer your questions.