The verse: "And say to the believing women that they should lower gaze was partly abrogated by the verse: "Such elderly women as are past the prospect of marriage." (Using translation from Abū Dāʾūd 4111)
{وَقُلْ لِلْمُؤْمِنَاتِ يَغْضُضْنَ مِنْ أَبْصَارِهِنَّ} [النور 31] الْآيَةَ فَنُسِخَ وَاسْتَثْنَى مِنْ ذَلِكَ {وَالْقَوَاعِدُ مِنَ النِّسَاءِ اللَّاتِي لَا يَرْجُونَ نِكَاحًا} [النور 60] الْآيَةَ