tobacco dust shafer's sign Schaffer's Sign. . ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ Description: Positive Schaffer's viewed through dilated pupil using dynamic vitreous assessment. In most patients with tears, retinal pigment epithelial cells, released through the tear, will be visible Schaffer's Sign (Tobacco Dust Sign):
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