Molecular Vision: Yang, Mol Vis 2013; 19:1684-1693. Table 1

Table 1. Slit-lamp microscope examination and cataract classification.

Experimental groups	Number of rats	0	II	III	IV	V	VI
Group A	40	40 (100%)
Group B*	40				8(20%)	10(25%)	22(55%)
Group C^#	40		2(5%)	10(25%)	18(45%)	6(15%)	4(10%)

Data are presented as N(%); Statistics analysis was by χ2 test; The degree of opacification was graded as follows: grade 0, normal transparent lens; grade 1, the initial sign of posterior subcapsular or nuclear opacity involving tiny scatters; grade 2, the slight nuclear opacity with swollen fibers or posterior subcapsular scattering foci; grade 3, the diffuse nuclear opacity with cortical scattering; grade 4, the partial nuclear opacity; grade 5, nuclear opacity without lens cortex; grade 6, mature cataract of entire lens. Group A: Rat pups received only saline. Group B: Rat pups received only selenite. Group C: Rat pups received selenite and hydrogen-saline. * Compared with Group A: p<0.05. # Compared with Group B: p<0.05.