A system for measuring an anterior surface topography of an eye, wherein the surface of the eye is coated with a fluorescent dye, the system comprising: a pattern projection system (0305, 0306; 0802; 1802) configured to emit light towards an ocular surface of the eye, wherein the pattern projection system is configured to project a sequence of structured light patterns onto the ocular surface; one or more image sensors (0301, 0302; 0803, 0804; 1803, 1804) configured to record one or more images of the structured light patterns resulting from the projected structured light pattern sequence, an analysis system comprising computing hardware configured to determine a topographic map of the ocular surface from the one or more images of the structured light patterns, characterized in that said system is configured to be operated in a Discrete Station Mode, wherein an individual topography measurement is acquired with an optical axis of the eye directed at one of a plurality of fixed location fixation targets, wherein each individual topography measurement is created from a series of images of the projected structured light pattern sequence reflected from the ocular surface, where each pattern sequence comprises: at least two flat-field images of the eye where the eye is illuminated in a wavelength range that overlaps a fluorescence wavelength of the fluorescent dye used to prepare the ocular surface but does not overlap an excitation wavelength of the fluorescent dye, and a sequence of at least one projected structured light pattern where the projected pattern is illuminated in wavelength range that overlaps the excitation wavelength of the fluorescent dye used to prepare the ocular surface but does not overlap the fluorescence wavelength of the fluorescent dye, and wherein at least one of the at least two flat-field images of the eye precedes the sequence of structured light patterns, and at least one of the at least two flat-field images of the eye follows the sequence of structured light patterns; and the analysis system is configured to process each of the plurality of individual topography measurements into the topographic map of the ocular surface. a pattern projection system (0305, 0306; 0802; 1802) configured to emit light towards an ocular surface of the eye, wherein the pattern projection system is configured to project a sequence of structured light patterns onto the ocular surface; one or more image sensors (0301, 0302; 0803, 0804; 1803, 1804) configured to record one or more images of the structured light patterns resulting from the projected structured light pattern sequence, an analysis system comprising computing hardware configured to determine a topographic map of the ocular surface from the one or more images of the structured light patterns, characterized in that said system is configured to be operated in a Discrete Station Mode, wherein an individual topography measurement is acquired with an optical axis of the eye directed at one of a plurality of fixed location fixation targets, wherein each individual topography measurement is created from a series of images of the projected structured light pattern sequence reflected from the ocular surface, where each pattern sequence comprises: at least two flat-field images of the eye where the eye is illuminated in a wavelength range that overlaps a fluorescence wavelength of the fluorescent dye used to prepare the ocular surface but does not overlap an excitation wavelength of the fluorescent dye, and a sequence of at least one projected structured light pattern where the projected pattern is illuminated in wavelength range that overlaps the excitation wavelength of the fluorescent dye used to prepare the ocular surface but does not overlap the fluorescence wavelength of the fluorescent dye, and wherein at least one of the at least two flat-field images of the eye precedes the sequence of structured light patterns, and at least one of the at least two flat-field images of the eye follows the sequence of structured light patterns; and the analysis system is configured to process each of the plurality of individual topography measurements into the topographic map of the ocular surface.