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. Author manuscript; available in PMC: 2020 Dec 27.
Published in final edited form as: J Refract Surg. 2019 Nov 1;35(11):721–728. doi: 10.3928/1081597X-20191004-01

Figure 2.

Figure 2.

Representative Brillouin results for the standard CXL group. (a) Distribution of Brillouin shifts in an untreated eye. Aqueous humor is the bottom part of the color map. (b) Distribution of Brillouin shifts in the same eye after standard CXL. According to Eq. (1), a higher Brillouin shift correlates to a larger longitudinal modulus. Increase of longitudinal modulus is elucidated with different colors. (c) Profiles of Brillouin shifts in (a) and (b) along the depth, averaged in lateral direction. The way to divide the cornea into 3 segments is also shown.