AMBLYOPIC COHORT  Inclusion Criteria:  Aged between 6 and 35 years old, Residual amblyopia defined as Best-Correct Visual Acuity (BCVA) of ≤ 20/20 in the amblyopic eye, an impairment of ≥ 2 lines in the amblyopic eye persisting even after refraction correction, Stable BCVA for at least 2 consecutive measurements over 6 months, Signed Informed Consent from the child's legal representative, by both the child and his/her legal representative for participants older than 14 years, or by full-aged participants themselves.  Exclusion Criteria:  Untreated or newly diagnosed anisometropic, strabismic or combined amblyopia, that is a child with BCVA interocular difference of ≥ 2 lines, Current atropine treatment or atropine treatment 3 months prior to enrolment in the study, Auditory deficits or loss, Eye surgery except those to correct strabismus, Strabismus over 20 dioptres (D) or with large eccentric fixation, Coexistence of ocular or neurological disease (e.g., seizure or epilepsy, incomitant strabismus, nerve palsy, horror fusionis), Developmental delay or disorder (e.g., dyslexia, dyspraxia, attention deficity hyperactivity disorder, autism spectrum disorders), Inability to follow and complete the procedures of the study (e.g., psychological or sensorimotor disorders).  HEALTHY INDIVIDUALS COHORT  Inclusion Criteria:  Aged between 6 and 35 years old, Signed Informed Consent from the child's legal representative, by both the child and his/her legal representative for participants older than 14 years, or by full-aged participants themselves.  Exclusion Criteria:  Auditory deficits or loss, Eye surgery except those to correct strabismus, Strabismus over 20D or with large eccentric fixation, Coexistence of ocular or neurological disease (e.g., seizure or epilepsy, incomitant strabismus, nerve palsy, horror fusionis), Developmental delay or disorder (e.g., dyslexia, dyspraxia, ADHD, ASD), Inability to follow and complete the procedures of the study (e.g., psychological or sensorimotor disorders).