Table 1.

Treatment method to determine the effective dose of doxycycline and curcumin.

Well no.	Treatment method and the contents of the wells
1	104 HCE-2 cells
2	104 HCE-2 cells + 3.42 mM CEES
3	104 HCE-2 cells + 3.42 mM CEES + 6.04 µM curcumin
4	104 HCE-2 cells + 3.42 mM CEES + 3.02 µM curcumin
5	104 HCE-2 cells + 3.42 mM CEES + 1.51 µM curcumin
6	104 HCE-2 cells + 3.42 mM CEES + 20.22 µg/ml doxycycline
7	104 HCE-2 cells + 3.42 mM CEES + 10.11 µg/ml doxycycline
8	104 HCE-2 cells + 3.42 mM CEES + 5.05 µg/ml doxycycline
HCEC, human corneal epithelial cell, CEES, 2-chloroethyl ethyl sulfide