What payment methods are accepted? VISA, Mastercard, American Express and Discover - including FSA and HSA cards. Ready to begin your Sightbox membership? Get started here. Related articles How often is a Sightbox account charged? Can I use my Health Savings Account (HSA)? Why do I pay monthly but do not receive contacts monthly? How much does a Sightbox membership cost? Can I use my Flexible Spending Account (FSA)? Comments 0 comments Please sign in to leave a comment.