Reward for showing patience for blindness is Jannah
attributed to the Prophet ﷺ that he said that: Allah ﷻ said: "From whomever I took away his two beloved things (his two eye), and he showed patience hoping for reward, I shall not be satisfied with any reward for him less than Paradise."
رَفَعَهُ إِلَى النَّبِيِّ ﷺ قَالَ يَقُولُ اللَّهُ ﷻ مَنْ أَذْهَبْتُ حَبِيبَتَيْهِ فَصَبَرَ وَاحْتَسَبَ لَمْ أَرْضَ لَهُ ثَوَابًا دُونَ الْجَنَّةِ