The following is true of the photograph below:

[Medicoman]

The following is true of the photograph below:

1. This particular stain stains only devitalized and dead cells and mucus.
2. This eye has been stained with 2% rose Bengal.
3. This stain pools in epithelial erosions and stains exposed basement membrane.
4. This stain may be a more sensitive indicator of early or mild cases of keratoconjuncitivitis sicca.