Error in the References. In the article titled"The Ocular Hypertension Treatment Study: Intraocular Pressure Lowering Preventsthe Development of Glaucoma, but Does That Mean We Should Treat Before theOnset of Disease?" published in the March issue of the ARCHIVES (2004;122:376-378),reference 9 should have read: Quigley HA, Vitale S. Models of open-angle glaucomaprevalence and incidence in the United States. Invest OphthalmolVis Sci. 1997;38:83-91.