Designed to easily convert your standard Eagle swimming goggles to a pair of prescription goggles with a simple "pop-and-swap" replacement process. These Eagle polycarbonate optical corrective vision lenses from Aquasphere feature an anti-fog， anti-scratch coating and offer UV protection blocking high-energy light while optimizing the full light spectrum ideal for use in indoor and outdoor swimming environments. Available to buy as individual lenses to allow for different prescription requirements for each eye. You don't need to specify right or left because a lens can be used for either eye (according to your requirements).