{"Page SDG":"SDG03 Good health and well-being, SDG10 Reduced inequalities","Page URL":"https://www.appropedia.org/Pinhole_Bifocal_Eyeglasses","Page description":"A simple, ultra low cost, do it yourself type of corrective eyeglasses, made from an aluminum soda can and capable of simultaneously correcting myopia (nearsightedness) and hyperopia (farsightedness) using the pinhole lens principle. See for free.","Page image":"File:Phg0168.jpg","Page keywords":"DIY pinhole glasses, vision impairment","Page language":"en","Page license":"CC-BY-SA-3.0","Page title":"Pinhole Bifocal Eyeglasses","Page views":"984","Page year":"Sunday, 01-Jan-17 00:00:00 UTC","Project authors":"User:Typ0","Project thumb":"https://www.appropedia.org/w/images/thumb/7/7e/Phg0168.jpg/330px-Phg0168.jpg","Project was made":"1","Project was replicated":"","Modification date":"Friday, 09-Jun-23 18:00:46 UTC"}