Allah Almighty created this life for testing and trialing us; He did not create it to be a place of happiness. Rather, eternal happiness is in the Hereafter after passing the tests of this life. Almighty Allah might create a person without the sense of sight or hearing, or create a person that suffers from chronic disease, or create a healthy person who lives in poverty, or one that suffers an accident that results in losing a limb or a sense, or any other trials and tests that people undertake. One should respond to that with gratitude for the other blessings that God has bestowed upon him and with patience over his suffering, so he that he becomes deserving of the rewards of gratitude and patience. This itself will be the means to alleviate his suffering and pain, as long as he believes that all of this is in the hands of Almighty Allah, the Merciful.