[The different forms of hypermetropia and the necessity of their precise correction (author's transl)].

The author presents a detailed analysis of hypermetropia. He defines its three pathogenetically important forms:--facultative, relative and absolute, starting from the principles of Donders and based upon the dioptrics of Gullstrand. The author then deals with the pathological processes caused by hypermetropia, especially with the formation of strabismus. Finally he discusses the effects of the three forms of hypermetropia and of the associated other deficiencies of refraction.