Unless fitted with a cochlear implant, individuals do not typically develop speech.
[ncbi.nlm.nih.gov]
Retinitis pigmentosa (RP), a progressive, bilateral, symmetric degeneration of rod and cone functions of the retina, develops in adolescence, resulting in progressively constricted
[ncbi.nlm.nih.gov]
Hearing loss typically begins during late childhood or adolescence, after the development of speech, and becomes more severe over time.
[ncbi.nlm.nih.gov]