Correction: In the article “Lipocalin-Type Prostaglandin D Synthase (β-Trace) Is Located in Pigment Epithelial Cells of Rat Retina and Accumulates within Interphotoreceptor Matrix” (C. Beuckmann et al.), which appeared on pages 6119–6124 in the October 1, 1996 issue, the authors would like to correct an error in Figure 4. In this figure under the “40 h” should read “+” rather than “−”.