Figure 6.

Effect of dietary oils on cornea sensitivity in high-fat-fed diabetic Sprague-Dawley rats. Corneal sensitivity was determined after early (open bars) and late (hatched bars) interventions by using Cochet-Bonnet filament esthesiometer as described in Materials and Methods. Data are presented as the mean ± SEM for corneal sensitivity in cm. The number of rats in each group was the same as shown in Tables 1 and 2, for the early and late intervention periods, respectively. Corneal sensitivities for control and diabetic rats at the beginning of the early intervention treatment were 5.9 ± 0.1 and 5.0 ± 0.2 cm, respectively. ^∗ P < 0.05 compared to control rats; ⁺ P < 0.05 compared to diabetic rats. OO: olive oil; SO: safflower oil; EPO: evening primrose oil; FO: flaxseed oil; MO: menhaden oil.