Cytology of human intraocular lenses. A scanning electron microscopic study.
Scanning electron microscopy of 9 intraocular lenses, removed from patients mainly because of corneal problems, revealed the presence of different types of adhering elements. Independent of clinically significant symptoms of infection, macrophages and/or epitheloid cells and/or granulocytes were observed. On their anterior surface, 3 lenses showed flat cells or cellular remains which are supposed to represent corneal epithelial cells. Membrane fragments were found on 3 other lenses. Most of the polymethylmethacrylate optics of the lenses showed some deformation and/or cracking and to evaluate them some additional studies with new intraocular lenses were performed. High pressure during the preparation procedure for scanning electron microscopy was found to be the cause.
D002448:Cell Adhesion; D003315:Cornea / Q000166:cytology; D003316:Corneal Diseases / Q000601:surgery; D004727:Endothelium / Q000166:cytology; D005347:Fibroblasts / Q000166:cytology; D006801:Humans; D007910:Lenses, Intraocular; D008855:Microscopy, Electron, Scanning; D011475:Prosthesis Failure; D013997:Time Factors