It is narrated from Hazrat Anas bin Malik (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said that Allah Almighty says: When I take away the eyesight of a person and he remains patient over it, I will grant him Paradise as a reward for it.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 12595