Comment by CGamesPlay
6 months ago
The pair I have (original xReal Air) include a glass insert that can be ground to your prescription. It's a thin piece of glass, I don't know exactly what kind of prescription can be put onto them, but it might be helpful.
That is usually for very low prescriptions. Judging by the photos, I don't think you can use those blanks for much more than -2.
some AR glasses come with built in correction up to -5.00. Beyond that, they recommend correction lens insert, so it can work for more. The built-in correction does not do astigmatism, that will require prescription insert too.
I'm around -6 and was able to get an insert for my VR headset. There are third parties who partner with eyeglass lens manufacturers to make them for most headsets.
possibly this is rather a template to cut a.preacription lens to the right size, just like glasses come with templates for the prescription lenses. the prescription lenses are shipped in a large round shape, and then cut to match the template.