Figure 2. Transmission electron micrographs (TEM) of the stroma within the area of the femtosecond laser keratotomy. An individual cavitation is highlighted (A, arrow). In the same image, epithelium is seen superiorly (dark area containing cell contents). B: An individual cavitation in greater detail. C: Streaks consistent with laser pulses within the stroma, note that the separation between streaks is roughly 5 microns.