Table 1. Transparency ratio and the blurriness index, applying the photographic-based method.

	Petri dish	PCCS	1-layer AM	2-layer AM	3-layer AM	4-layer AM
Transparency ratio	1.000±0.000	0.803±0.029	0.951±0.012	0.859±0.016	0.774±0.014	0.699±0.026
Blurriness index	0.000±0.055	0.506±0.042	0.252±0.055	0.464±0.060	0.634±0.059	0.741±0.007

Transparency ratio and the blurriness index, together with their standard deviations of the PCCS, petri-dish, amnion (1 layer) and multi-folded amnion (2 to 4 layers), applying the photographic-based method.