the scales fall from someone's eyes
US /ðə skeɪlz fɔːl frəm ˈsʌm.wʌnz aɪz/
UK /ðə skeɪlz fɔːl frəm ˈsʌm.wʌnz aɪz/

1.
cadere le squame dagli occhi a qualcuno, capire la verità
if the scales fall from someone's eyes, they suddenly understand the truth about a situation, especially when they have been deceived or mistaken before
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After years of believing his lies, the scales fell from her eyes when she saw the evidence.
Dopo anni di credulità alle sue bugie, le caddero le squame dagli occhi quando vide le prove.
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It wasn't until I traveled abroad that the scales fell from my eyes about my own culture.
Solo quando ho viaggiato all'estero le squame mi sono cadute dagli occhi riguardo alla mia cultura.