Sign language is one of the biggest modes used to communicate among the hearing loss community. Sign language comprises hand gestures, hand shaping and also the facial expressions and lip patterning for the demonstration
Hearing impairment, deafness or hearing loss refers to a partial or total reduction in the ability to hear. The factors that caused hearing impairment are not limited to age, noise, illness and physical trauma.
According to the National Institute on Deafness and Communications Disorders report, about 10% of people between age 20 and 59 have permanent damaged hearing, while 50 of aged folks above 60 years have