Does Sightbox work with RGP (rigid gas permeable) or scleral lenses? No, Sightbox is designed to support soft disposable contact lenses only. We are unable to support hard or custom contact lenses of any kind. Ready to begin your Sightbox membership? Get started here. Related articles What shipping methods are used? What types of contact lenses are supported? What if I discover that contacts are not for me after I sign up? What are trial contact lenses? How much does a Sightbox membership cost? Comments 0 comments Please sign in to leave a comment.