How could anyone possibly answer that if they are neither deaf nor blind? How could anyone possible know what it would be like to be either if they have never experienced it. So a choice isn't really possible just a guess at what might be "worse."
i would choose injure!!! cuz you can still talk and see! and injure can last and can be heal too! increases your lives too to withstand more punishment!
Both have their pros and cons but at least your other senses are heightened! Id be blind so i can hear better. But i would be deaf so i can still use computer!