The effect of photodynamic inactivation on corneal epithelial, stromal and endothelial cells was investigated in tissue cultures. In contrast to reports regarding in vivo studies, the in vitro treatment caused significant degeneration and growth inhibition of stromal corneal cells and less marked changes of epithelial corneal cells in tissue cultures. Stationary endothelial cells appeared least effected. The neutral red was seen in the intracytoplasmic granules and in time localized mostly in the perinuclear area, and to a lesser extent within the nucleus. The in vitro study of actively growing corneal cells appears to be a sensitive indicator of cell damage following photoinactivation.
ASJC Scopus subject areas
- Sensory Systems
- Cellular and Molecular Neuroscience