Chronic Persistent Visual Loss: Optical Causes What Causes It? Uncorrected refractive errors and imperfections of the optical media such as keratitis or cataract. To learn more about keratits, click on Red Eye: Keratitis. To learn more about cataract, click on Principal Ophthalmic Conditions: Cataract  Previous Next

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Originally created by Jonathan Trobe, M.D., University of Michigan Kellogg Eye Center © 2009 The Regents of the University of Michigan Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution 3.0 License.