Dichoptic Treatment for Amblyopia in Children 8 to 12 Years of Age
Trial Parameters
Brief Summary
Participants eligible for the study will be randomly allocated (1:1:1) to receive either Luminopia dichoptic treatment while wearing optical correction if needed, Vivid Vision dichoptic treatment while wearing optical correction if needed, or continued optical correction alone if needed, with clinical assessments at 9- and 18-weeks post-randomization. At the 18-week primary outcome visit, participants who were randomly assigned to receive optical correction alone if needed with an IOD of 1 logMAR line (5 letters) or more, will be offered randomization to Luminopia or Vivid Vision dichoptic therapy and if they accept, followed forward with visits at 27- and 36-weeks post-randomization. The study will end for all other participants at 18 weeks.
Eligibility Criteria
Inclusion Criteria: 1. Age 8 to \<13 years. 2. VA, measured in each eye without cycloplegia in current refractive correction (if applicable) using the E-ETDRS VA protocol on a study-approved device displaying single surrounded optotypes, as follows: 1. VA in the amblyopic eye 20/40 to 20/200 inclusive (33 to 72 letters with E-ETDRS). 2. VA in the fellow eye 20/25 or better (≥ 78 letters with E-ETDRS). 3. Interocular difference ≥ 3 logMAR lines (≥ 15 letters) i.e., amblyopic eye VA at least 3 logMAR lines worse than fellow eye VA). 3. Amblyopia associated with strabismus, anisometropia, or both (previously treated or untreated). 1. Criteria for strabismic amblyopia: At least one of the following must be met: * Presence of a heterotropia on examination at distance or near fixation (with optical correction), must be \<=5 prism diopters (∆) by SPCT at distance and near fixation. * Documented history of strabismus which is no longer present (which in the judgment of the investigator could h