Purpose : In this study we investigated the effect of myopia correction using corneal factor values for children wearing reverse geometry lens(Paragon CRT~lOO Lens). Methods : We measured corneal factor values. which were an uncorrected visual acuity, a spherical equivalent using autorefractometer. and a corneal astigmatism, a corneal radius, and a corneal eccentricity using topographer, for 13 patients(26 eyes) at before wearing reverse geometry lens, 1 weeks. 1 months. and 3 months after wearing reverse geometry lens . We also evaluated statistical significance test for the measured values of corneal factors to investigate the effect of myopia correction. Results : We know from these results that an uncorrected visual acuity improved from 0.11ｱ0.06 at before wearing reverse geometry lens to 0.98ｱ0.21 at 3 month after wearing reverse geometry lens and a spherical equivalent. a corneal astigmatism. a corneal radius, and a corneal eccentricity at 3 month after wearing reverse geometry lens were -0.94ｱ0.81 D. 8.09ｱ0.14 mm, -1.09±0.91 D. and -0.29±0.29. respectively. There were the statistical significances of an uncorrected visual acuity a spherical equivalent. a corneal radius, and a corneal eccentricity, but was not that of a corneal astigmatism. Conclusions : We also know that the effect of myopia correction at 1 week after wearing reverse geometry Jens was represented distinctly and that at 3 month after wearing reverse geometry lens was continued.