Provided is a myopia progress diagnostic device, whereby it is possible to easily diagnose the progress of juvenile- and adult-onset myopia, predict whether there will be progressive juvenile- or adult-onset myopia, and prescribe contact lenses which fit juvenile or adult eyes. As denoted in Fig. 1, said device comprises: a light projection unit (13) which projects a measurement light upon the retina in a direction which forms an angle θ with an optical focal line which joins the approximate center of the pupil of a subject eyeball (2) with the macula a photodetector unit (14) which receives light which is reflected from the retina and acquires optical data (D17) in the peripheral visual field of the fundus oculi and a data analysis unit (20) which analyzes the optical data (D17), derives PSF characteristics of the location of the focal point of the measurement light in the angle θ and of the locations fore and aft of the said focal point, and, on the basis of the PSF characteristics, assesses whether a hypermetropic aft focal point is present in the peripheral visual field of the fundus oculi of the subject eyeball (2). It would be possible to measure a corrective prescription lens strength necessary to alleviate myopia from the degree of hypermetropy obtained with this measurement system.La présente invention concerne un dispositif de diagnostic de progression de la myopie, qui rend possible le diagnostic facile de la progression de la myopie de lenfant et de ladulte, la prédiction sil va y avoir une myopie de lenfant ou de ladulte progressive, et la prescription de lentilles de contact qui sajustent aux yeux de lenfant ou de ladulte. Tel que noté sur la figure 1, ledit dispositif comprend : une unité de projection de lumière (13) qui projette une lumière de mesure sur la rétine dans une direction qui forme un angle θ avec une ligne focale optique qui relie le centre approximatif de la pupille du globe oculaire (2) dun sujet avec la macule une unité de photodétect
