Table 1.

Inversely calculated material parameters from the literature and calculation of the resulting parameter $\mu ={\mu }_1+{\mu }_2$. in—in vivo, ex—ex vivo, d—indentation, i—inflation, k—keratectomy, t—tensile test

Publication	$K[\mathrm{MPa}]$	${\mu }_1[\mathrm{MPa}]$	${\mu }_2[\mathrm{MPa}]$	$\mu [\mathrm{MPa}]$	$k_1[\mathrm{MPa}]$	$k_2[-]$	Exper. basis
Alastrué et al. (2006)	0.075	0.005	0	0.005	0.0049	103	Ex/i (Bryant and McDonnell 1996)
Pandolfi and Manganiello (2006)	5.500	1.055 7.555 0.00505 0.055	− 1.0455 7.550  − 0.005  − 0.005	0.0005 0.005 0.00005 0.050	0.250 0.175 0.055 0.055	50 15 16 14	Ex/t (Bryant et al. 1994) Ex/t (Hoeltzel et al. 1992) Ex/t (Zeng et al. 2001) Ex/t (Wollensak et al. 2003)
Petsche and Pinsky (2013)	–	0.00559	–	0.00559	0.638	314	in/d
Sánchez et al. (2014)	5.500	0.060 0.090	− 0.010  − 0.020	0.050 0.070	0.040	200	in/k
Reference values (healthy)	10	0.275	0	0.275	0.040	200