Participants: Children aged 3 to <7 years with a history of untreated anisometropic amblyopia
-Interocular acuity difference ≥3 LogMAR lines
-Anisometropia of ≥0.50 diopters of spherical equivalent and/or
-≥1.50 dioptres interocular difference in astigmatism
-no prior spectacle wear/amblyopia treatment
-Spectacle-corrected amblyopic eye VA 20/40-20/400
-Sound eye ≥ VA 20/40
Intervention: Spectacle prescription
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