Table 1. Mean corneal epithelial thickness for each dry eye treatment.

Treatment	Corneal Epithelial Thickness (μm)	N
Normal eye	36.77±0.64	91
Whole Milk	33.20±2.50	15
Fat-Reduced Milk	36.10±1.58	9
Nopal (crude)	24.76±1.78	10
Nopal (filtered)	27.99±2.75	5
Ethyl Acetate	26.53±1.46	5
Methanol	21.59±5.87	5
Dry eye (BAK)	21.29±3.17	30
Cyclosporine	38.52±2.47	14

Statistics by one-way ANOVA with Tukey post-hoc test. Data are mean ± SEM.