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  • Title: Sources of variance in the objective documentation of human cataractous change with Topcon SL-45 and Neitz-CTR retroillumination photography and computerized image analysis.
    Author: Chylack LT, Rosner B, Cheng HM, McCarthy D, Pennett M.
    Journal: Curr Eye Res; 1987 Dec; 6(12):1381-90. PubMed ID: 3427987.
    Abstract:
    In the application of Topcon SL-45 Scheimpflug slit and Neitz CTR retroillumination photography to in vivo documentation of cataractous change, several sources of variance affect the results of each technique. We have measured the between-person, between-photographer, between-focal plane (Neitz), between-photo session, replicate photograph (Topcon), between-image analyst and replicate image analysis variances encountered in in vivo documentation of human cataracts with the Topcon SL-45 and Neitz-CTR cameras and our system of computerized image analysis.
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