Fig. 4From: Progress in tear microdesiccate analysis by combining various transmitted-light microscope techniquesRepresentative image of a normal tear microdesiccate as observed by transmitted-light microscopy with phase 1 illumination. Both tear microdesiccate production and the lens system of the microscope were those described in the legend to Fig. 3. The bright halo of light on the border of the microdesiccate defines a thick morphological zone I surrounding a complex mass of tear crystalloidsBack to article page