Table 3.

Local anesthetic activity of ethercaine on rabbit eye cornea according to the Regnier method.

Compound	Regnier Index (Min—13, Max—1300)
	Dark	UV λ = 365 nm
4% Kolliphor® ELP	13 (n = 4)	13 (n = 4)
4% Pluronic F127	13 (n = 4)	13 (n = 4)
2% lidocaine hydrochloride	451 ± 40 (n = 8) a	469 ± 37 (n = 8) a
0.6% ETH in 4% Kolliphor ELP a	232 ± 50 (n = 8) a	22 ± 3 (n = 8) a
1% ETH·HCl in 4% Kolliphor ELP	644 ± 30 (n = 8)	32 ± 16 (n = 8)
1% ETH·HCl in 4% Pluronic F127	656 ± 18 (n = 8)	40 ± 11 (n = 8)

^a the values were obtained earlier [19].