An excellent explanation of visual stress and how nearpoint lenses can provide more comfortable vision.
Pamphlets are sold in packages of 100.
1-4 Packs (100 per pack) $33.00 per pack
5-9 Packs (100 per pack) $30.00 per pack
10 or more Packs (100 per pack) $28.00 per pack
Discount is applied at checkout.