Does deaf mean unable to hear anything?
No. Few children are totally deaf. Most have some hearing on some frequencies at certain volumes. There are 3 types of deafness, each with different causes and implications: • Conductive deafness. This is the most common type. It means that sound cannot pass efficiently through the outer and middle ear to the cochlea and audiotory nerve. • Sensori-neural deafness (or nerve deafness). This usually means that the cochlea (inner ear) is not processing the sound effectively. • Mixed deafness. Where a child has a mixture of conductive and nerve deafness.
