To improve the eyesight:
Recite the following verse three times after every Salaah
Then blow on the thumbs and pass them over the eyes:
فَكَشَفْنَا عَنكَ غِطَاءكَ
فَبَصَرُكَ الْيَوْمَ حَدِيدٌ
Fabasarukal yowma hadeed
We have removed your veils from you and your vision is ever sharp today.
[Surah Qaaf, verse 22]