Objective. To evaluate the degree of axial elongation with soft radial refractive gradient (SRRG) contact lenses, orthokeratology (OK), and single vision (SV) spectacle lenses (control) during a period of 1 year before treatment and 2 years after treatment. Methods. This was a prospective, longitudinal, nonrandomized study. The study groups consisted of 30, 29, and 41 @entity1 , respectively. The @entity3656 ( @entity3656 ) was measured during 2 years after recruitment and lens fitting. Results. The baseline refractive sphere was correlated significantly (Spearman's Rho (  ) correlation = 0.542; P < 0.0001) with the amount of @entity1714 progression before baseline. After 2 years, the mean @entity1714 progression values for the SRRG, OK, and SV groups were -0.56    0.51, -0.32    0.53, and -0.98    0.58 diopter, respectively. The results represent reductions in myopic progression of 43% and 67% for the SRRG and OK groups, respectively, compared to the SV group. The @entity3656 increased 27% and 38% less in the SRRG and OK groups, respectively compared with the SV group at the 2-year visit (P < 0.05). Axial elongation was not significantly different between SRRG and OK (P = 0.430). Conclusion. The SRRG lens significantly decreased @entity3656 elongation compared to the SV control group. The SRRG lens was similarly effective to OK in preventing @entity1714 progression in myopic @entity1 and adolescent.

XXXX Control with a Novel Peripheral Gradient Soft Lens and Orthokeratology: A 2-Year Clinical Trial.

@entity1 :: ('9606', 'Species') :: ['children'] @entity3656 :: ('MESH:D007870', 'Disease') :: ['AL', 'axial length'] @entity1714 :: ('MESH:D009216', 'Disease') :: ['myopia']
@entity1714 :: (MESH:D009216,Disease) :: ['Myopia']
