Fig. 3
From: Biometry and visual function of a healthy cohort in Leipzig, Germany
“Contrast sensitivity results for different spatial frequencies stratefied by refractive status”. Caption: Contrast sensitivity for the three refractive states, stratified by spherical equivalent of subjective refraction determined by best corrected visual acuity: ● myopia; x emmetropia; □hyperopia. Gratings examined consisted of spatial frequencies of 1.5, 3, 6, 12 and 18 cycles per degree