A method for providing spectacle lenses that have a microstructure on at least one side. It is characterized in that the casing is provided inside with an incision blood-taking mechanism composed of a cam, a swing arm, a blade and a spring. The warehouse table is stored in memory as a plurality of temporal partitions, with each temporal partition storing data within a contiguous range of time. Another common attribute is a bladder cavity being defined by the top surface, the bottom surface and the at least one side surface. Preparation of the novel form of azithromycin comprises the steps of dissolving azithromycin in isopropanol, followed by the slow addition of water to the organic solution.