The Prophet, sallallahu ^alayhi wa sallam, said:

إِنَّ اللهَ عَزَّ وَجَلَّ يَقُولُ: إِذا ابْتَلَيْتُ عَبْدِي بِحَبِيبَتَيْهِ فَصَبَرَ عَوَّضْتُهُ مِنْهُمَا الْجَنَّةَ.

 Innallaha ^azza wa jalla yaqul: idha-btalaytu ^abdiya bihabibatayhi fasabara ^awwadtuhu minhumal-Jannah.

Which means: “If Allah inflicts on someone the calamity of losing one’s sight and one is patient with it, then the reward of one’s patience will be Paradise.” (Narrated by al-Bukhariyy.)

Subjugating oneself to Allah: It is obligatory upon the pubescent person to refrain from objecting to Allah and to be content with Allah's Decree and Will. Subjugating oneself to Allah is among the obligations of the heart. Objecting to Allah is a blasphemous act. Many people fall into blasphemy because they do not subjugate themselves to Allah, rather, they object to Him.

The Muslim should be patient and should make an effort to train oneself in patience to get used to it. One should also rely on Allah in all one’s matters.