Fig. 7From: 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 dark-field illumination. Both tear microdesiccate production and the lens system of the microscope were those described in the legend to Fig. 3 Zone I is not visible, the transition band becomes somewhat diffuse and fern-like crystalloids become the main visible structures as a consequence of light-scatteringBack to article page