Not deafness, but there&#x27;s a visual hallucination that affects people with deteriorating eyesight.<p>It&#x27;s called &quot;Charles Bonnet Syndrome&quot;. <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Visual_release_hallucinations" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Visual_release_hallucinations</a><p>You can hear about it here:
<a href="http:&#x2F;&#x2F;www.bbc.co.uk&#x2F;programmes&#x2F;b071fs79" rel="nofollow">http:&#x2F;&#x2F;www.bbc.co.uk&#x2F;programmes&#x2F;b071fs79</a>