Amblyopia or the lazy eye.
D000360:Afterimage; D000550:Amblyopia / Q000209:etiology / Q000517:prevention & control / Q000628:therapy; D001251:Astigmatism / Q000150:complications; D002657:Child Development; D002675:Child, Preschool; D005123:Eye / Q000254:growth & development; D006801:Humans; D007223:Infant; D009887:Ophthalmoscopy; D012030:Refractive Errors / Q000150:complications; D013285:Strabismus / Q000150:complications; D014787:Vision Tests