Prescription swimming goggles! I don't know the exact prescription, but my eyesight was about 0.1 at the time I used them! I used them for about 6 months when I was in elementary school. Smoked lens children's goggles with adjustable straps for a comfortable fit. - Brand: A NEW - Color: Black - Lens Type: Smoked Lens - Strap Type: Adjustable Strap Thank you for looking.