Protocol: IXT5 - A Randomized Clinical Trial of Overminus Spectacle Therapy for Intermittent Exotropia Status: Closed Start Date: 12/19/2016 End Date: 02/15/2022 Clinical Trial ID: NCT02807350 Public Dataset: Download IXT5 - A Randomized Clinical Trial of Overminus Spectacle Therapy for Intermittent Exotropia Protocol Primary Objective: The objective of this full-scale randomized trial comparing 2.50D overminus lens treatment vs. non-overminus (spectacles without overminus or no spectacles) is to determine the efficacy of overminus lenses after 12 months of treatment. Back