| Sumario: | Background: Intermittent central suppression (ICS) is an intermittent loss of central visual sensation. Treating ICS has improved quality-oflife symptoms and reading levels. Improvements in ICS hold over time. A score based on ICS-- percentage of binocularity during waking hours-- can be used to quantify binocularity and changes in binocularity. Subjects and Methods: Two case-series groups, 36 treatment-with-therapy subjects and 36 agematched no-therapy subjects who had two ICS examinations, were retrospectively put together from records in a private optometric clinic. Percentages of binocularity were calculated for both groups. Prior studies are added to compare diagnostic data over a larger group. In addition, preliminary results of measurements of apical scatter on VO star drawings are presented. Results: The treatment and non-treatment groups show remarkable consistency in visual characteristics and ICS timing. ICS patients tend to be refractively "normal." Vision therapy for ICS works. Time without vision therapy does not improve ICS. Lenses do not improve ICS over time, but reading lenses may have a slight, not statistically significant, but positive effect on ICS. Improvement in binocularity may have a positive effect on VO star apical scatter.
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