1. Whoever will after doing ablution of any prayer will look at sky and recite Surah Qadar, then rub his hand on his face then his eye sight will never get week.
2. After prayer of Juma recite 100 times  ’’ یَابَصِیْرُ‘‘ and blow on index finger and put it on eyes then the light of eyes will increase
3. After every prayer recite  ’’یَانُوْرُ‘‘ eleven times and three times

’’  اَللّٰھُمَّ قَوِّنِیْ وَبَصَرِیْ ‘‘

 And blow on fingers and rub on eyes. INSHA ALLAH till the time of death the light of eyes shall remain