09/12/2025
Mini fun lesson - see the vertical lines on this pair of glasses? It’s a Fresnel prism stick on. It’s a super thin, flexible plastic sheet w prism grooves built in. It’s designed to be applied to the surface of lenses. It corrects double vision, or eye alignment problems by shifting the image seen by one eye so that it lines up with the other. Eye doctors often prescribe them for conditions like strabismus, cranial nerve palsies, or post-stroke vision issues. It can be trialed/applied temporarily to lenses and later a rx lens w the prism correction can be placed in more permanently. But in this case we are gonna add this to a second back up pair of glasses for a very sweet woman named Margaret.
