The lens
opacification of the ICR/f rats was observed with a slit lamp
microscope. On the 21st day of this experiment, 56% of the
lenses in the control group had developed opacities, which
were judged to be in the cataract condition. On the other
hand, the groups treated with HDMF and HEMF showed
delayed cataract formation; the incidence of cataracts being
21% and 44%, respectively (Fig. 8). HMF did not have any
ability to prevent cataracts in the lenses of ICR/f rats.