Table 2.

Level of Retinal NGF and GFAP

Parameters	Normal	Negative Control	Dose 1 μg/uL	Dose 10 μg/uL	Dose 100 μg/uL
NGF (pg/mL)	113.4 ± 9.7*	67.3 ± 4.3	75.1 ± 9.5*	85.3 ± 7.6*	97.5 ± 8.7*
GFAP (ng/mL)	41.4 ± 2.9*	182.2 ± 9.5	165.3 ± 13.3*	132.1 ± 11.9*	109.2 ± 8.9*

Data were mean ± SD;

^*p < 0.05 compared with the negative control.