Translation of "Sordera" in English

Me estudiaron y descubrieron que tenía una sordera moderada.

They assessed me, and they found that I was moderately deaf.

Que no tienen ni idea sobre la sordera ni métodos para comunicarse.

who have no clue about deaf issues and no communication methods.

Y no sabían nada sobre la sordera antes de tenerme a mí.

and they knew absolutely nothing about deaf issues before I came along.