Fig. 22. Electron micrograph of an area of active scleritis showing the plasma cell infiltrate suggestive of an immune response. Note aggregated plasma cells, with the characteristic whorled rough endoplasmic reticulum, in the process of degeneration, releasing organelles and nuclear debris into the extracellular matrix. (Uranyl acetate and lead citrate. X3000) (Courtesy of Dr. R. Tripathi)