Trehalose-Based Eye Drops Preserve Viability and Functionality of Cultured Human Corneal Epithelial Cells during Desiccation

Figure 4

The neutral red staining of corneal epithelial cells after treatment with tested preparations and 15 minutes of desiccation. Only in cells treated with Thealoz (a) and Keratostill (d) a dye uptake may be observed. In the remaining samples only slight or no reaction was noticed. (a) Thealoz, (b) Hialeye 0.2, (c) Hialeye 0.4, (d) Keratostill, (e) Lacrimal, (f) Starazolin, (g) Systane, (h) 0.9% NaCl control, and (i) not treated control; magnification 400x; scale bar = 20 um.

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