[Ultrastructural findings in secondary lipoidosis of the cornea]

A patient suffering from a progressive keratopathy which could not be identified clinically underwent penetrating keratoplasty. Light microscopy showed cholesterol deposits in deep stromal regions. Further ultrastructural investigations confirmed these findings and, in addition, fibrous long spacing collagen was found in that region; this represents a new factor in the possible pathogenesis of corneal lipid degenerations.