Measures of accommodative function in secondary school year 9 and year 13: a 4-year longitudinal study
Esther Mármol-Errasti, J. M. Cárdenas-Rebollo, Antonio Rodán, Encarnación Pagán-Fernández, Laura C. Jara-García, C. Palomo-Álvarez
Graefe's Archive for Clinical and Experimental Ophthalmology