Figure 3From: A survey of visual function in an Austrian population of school-age children with reading and writing difficulties Near ocular posture status for both groups. Distance ocular posture status for both groups. Histogram detailing the percentage of subjects in both the control group and the referred group with orthophoria (Ortho), exophoria (XOP), esophoria (SOP) and hyperphoria (HYP) at near (40 cm).Back to article page