. Author manuscript; available in PMC: 2014 Aug 4.

Published in final edited form as: Invest Ophthalmol Vis Sci. 2014 Mar 13;55(3):1549–1554. doi: 10.1167/iovs.13-13042

Table 1. The Speed of Sound (Mean ± SE) of the Anterior and Posterior Parts of The Cross-Linked and Control Corneas in All Groups.

Cornea	Speed of Sound of the Anterior Cornea, Mean ± SE, ms⁻¹	Speed of Sound of the Posterior Cornea, Mean ± SE, ms⁻¹
CXL, group A	1677.38 ± 10.70	1603.90 ± 9.82
Control, group A	1595.23 ± 9.66	1577.13 ± 8.16
CXL, group B	1746.33 ± 23.37	1631.60 ± 18.92
Control, group B	1637.57 ± 22.15	1612.30 ± 22.23
CXL, group C	1717.97 ± 18.92	1616.62 ± 17.58
Control, group C	1628.69 ± 9.37	1597.68 ± 11.97

CXL, cross-linking.