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 Silica Dust Hazard Sign -
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