What is essential for understanding spoken language in those who are hard of hearing?

Speechreading is essential for understanding spoken language in individuals who are hard of hearing because it involves observing the speaker's mouth movements, facial expressions, and gestures to comprehend what is being communicated. This visual information can significantly enhance understanding, especially when auditory input is limited.

For someone who experiences hearing loss, relying solely on hearing aids may not be sufficient, as they may not completely restore normal hearing ability. Written communication can be helpful, but it does not replace the need for real-time interaction and the nuances conveyed through speech. Cued speech, while supportive in some contexts, is less commonly used and can limit access to a broader range of spoken language comprehension compared to the comprehensive approach offered by speechreading.