Tuesday, September 22, 2009
- This particular stain stains only devitalized and dead cells and mucus.
- This eye has been stained with 2% rose Bengal.
- This stain pools in epithelial erosions and stains exposed basement membrane.
- This stain may be a more sensitive indicator of early or mild cases of keratoconjuncitivitis sicca.
Correct Answer: This stain may be a more sensitive indicator of early or mild cases of keratoconjuncitivitis sicca.
This eye has been stained with 1% rose Bengal, which was originally thought to stain only devitalized and dead cells and mucus, but now is thought to stain epithelial cells that are inadequately protected by a mucin tear coating. Fluorescein pools in epithelial erosions and stains exposed basement membrane.