Syringic Acid Extracted from Herba dendrobii Prevents Diabetic Cataract Pathogenesis by Inhibiting Aldose Reductase Activity

Table 3

Comparison of lens turbidity by group at different time points after medication.

Groups	𝑁^∗	20 days	30 days	40 days	60 days	90 days
Normal control	40	0	0	0	0	0
Model control	40	77	92	98**	110**	130**
Catalin control; (0.8 mg/15 mL)	40	77	92	65	33	23
Syringic acid (2%)	40	77	92	57^#	29^#	15^#

𝑁^∗: number of eyes used in each group.
** 𝑃<0.01 compared with the normal control and other groups.
^#𝑃<0.05 compared with Catalin control.
Intergroup differences were analyzed using the Nemenyi multiple comparison H test.
Clear lines indicated Grade 0 turbidity; vague lines with a distinguished outline indicated Grade I (+) turbidity, a vague outline with indistinct line centers indicated Grade II (++) turbidity, and a cloudy cortex with all lines invisible indicated Grade III (+++) turbidity. (Numbers in columns from 20 d to 90 d are the summed “+” for each group, representing the general turbidity.)