Hodgkin-Huxley Model		RGC Model
Na-activation:
α m (V):	−0.1(V + 35) / [exp(− 0.1(V + 35)) − 1]		− 0.3753(V + 35) / [exp(− 0.1(V + 35)) − 1]
β m (V):	4 exp[− (V + 60) / 18]		12.51 exp[− (V + 60) / 20]
Na-inactivation:
α h (V):	0.07 exp[− (V + 60) / 20]		0.2502 exp[− (V + 52) / 20]
β h (V):	1 / [1 + exp(− 0.1 (V + 30))]		3.753 / [1 + exp(− 0.1 (V + 22))]
K-activation (delayed rectifier):
α n (V):	− 0.01(V + 50) / [exp(− 0.1(V + 50)) − 1]		− 0.01319(V + 37) / [exp(− 0.1(V + 37)) −1]
β n (V):	0.125 exp[− (V + 60) / 80]		0.2638 exp[− (V + 47) / 80]
Ca-activation (H-type):
α c (V):	− 0.05(V + 13) / [exp(− 0.1(V + 13)) − 1] *		− 0.1877(V + 13) / [exp(− 0.1(V + 13)) − 1]
β c (V):	1.667 exp[− (V + 38) / 18] *		6.256 exp[− (V + 38) / 18]
Open Channel Conductances [Reversal Potentials]
G Na [V Na]:	120 mS / cm2	[+ 55 mV]	19.425 mS / cm2	[+ 54.96 mV]
G K [V K]:	36 mS / cm2	[− 72 mV]	7.286 mS / cm2	[− 91.90 mV]
G Ca [V Ca]:	3.305 mS / cm2	[variable] *	0.535 mS / cm2	[variable]
G K (Ca) [V K (Ca)]:	0.247 mS / cm2	[− 72 mV] *	0.050 mS / cm2	[− 91.90 mV]

^*The Ca-system (I _Ca and I _{K (Ca)}) is not a part of the Hodgkin-Huxley model; it is sometimes added here to that model to test its effects in model comparisons.