Seeing Clearly: Red-teaming GiveWell's Glasses Research

Published on August 14, 2026 1:10 PM GMTIf you are one of the 166 million Americans who wear glasses, take them off. Now imagine going your whole life like that. Not fun, right? Whether due to prohibitive cost or a lack of awareness/education, over a billion people are estimated to be living with avoidable vision impairment.Sounds like a promising cause area! GiveWell has done a few analyses on eyeglasses provision and is funding an ongoing RCT that will provide our best evidence yet on the effe...