Figure 2.

Cataract development in galactose fed rats. Preventive effect of caffeine. At various stages of cataract development the animals were euthanized by CO₂ inhalation, lenses dissected out and placed on a Millipore metallic grid with uniform holes. Photographs were then taken in dark with retro-illumination. A: Cataract is indicated by the obstruction in light transmission through the grid holes because of the noticed opacity. B: Semiquantitaive evaluaton of the density of opacity (G: galactose diet; C: caffeine treated).