Representative images from transmission electron microscopy showing the conjunctival epithelial ultrastructure.

<p>Compared with normal eyes, fewer goblet cells and secretary granules were observed on day 0 in Groups BAC-W2 and BAC-W3, and on days 0, 7, and 21 in Group BAC-W4. This loss of goblet cells and secretary granules was particularly pronounced in Group BAC-W5 on all of the days that were studied. Chromatin condensation and peripheral migration could be observed on days 0, 7, and 21 in Group BAC-W5.