FIGURE 1.

A, Curve fit of the average infrared CH stretching region spectra of meibum from donors without dry eye. B, Average infrared CH stretching region spectra of (i) meibum from donors without dry eye; (ii) meibum from donors with dry eye due to meibomian gland dysfunction; and (iii) meibum from donors who have had hematopoietic stem cell transplantation and are susceptible to severe dry eye. C, Infrared CH stretching region spectra of (i) meibum from donors without dry eye; (ii) oleyl oleate; (iii) stearyl palmitate; (iv) cholesteryl behenate; and (v) cholesterol. D, Schematic of wax structure and conformation.