The key to the availability of rimless or semi-rimless frames is the weight and thickness of your lenses. The lack of a surrounding-mount frame results in a reduction in stability and durability, and because of the added exposure, rimless or semi-rimless lenses are more prone to damage than those mounted in full-frame styles. If your vision correction prescription is fairly or very strong, your lenses may be too thick and heavy to fit a rimless or semi-rimless frame style. Stronger prescriptions can also require a deep curvature, resulting in thick edges that are not aesthetically pleasing or simply do not fit a rimless or semi-rimless bridge. So according to your prescription, it is available for the semi-rimless glasses.