Note that the Sasuke eternal Mangekyou contact lenses you will find at Amazon or eBay are those contact lenses without prescription. If you want those with a prescription, the price will be higher and you will need a doctor’s prescription in order to buy them from any store selling colored contact lenses. However, the price will be cheap if you buy from online stores such as Amazon. These eyes help them see the chakras of their enemies using the Byakugan, high quality cosplay costumes which in turn allows them to both avoid attacks and shut down their internal organs in order to stop them from fighting back.