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. Author manuscript; available in PMC: 2010 Feb 1.
Published in final edited form as: Invest Ophthalmol Vis Sci. 2009 Oct 8;51(2):850. doi: 10.1167/iovs.09-3901

Figure 3.

Figure 3

DIC photomicrographs of IRIS lines created at 0.1 mm/s (outer lines; arrow) and 2 mm/s (inner five lines) in living corneal tissue doped with different concentrations of Na-Fl in preservative solution. In undoped cornea (0% Na-Fl), the IRIS lines were barely visible, even at 0.1 mm/s, suggesting little or no RI change. By increasing the TPA of the tissue with Na-Fl doping, significant and visible RI changes were induced at high scanning speeds (such as 2 mm/s). However, low scanning speeds (0.1 mm/s) caused plasma luminescence and bubble formation (arrow).