1800Contacts - Discount Contact Lense _ Product List Cool Contact Lenses at a Discount from 1800Contacts   Vertex sphere (Encore sphere) Contact Lenses CooperVision CooperVision, Inc. is changing the brand name of CV Encore Sphere to Vertex Sphere. While the name is new, the actual packaged lens remains the same. During this transition you may receive either lens, but you can trust that their performance will be ide We will always exchange any unused lenses for you at no cost if your prescription changes! Price: $19.95 BUY NOW