๐ฌ๐งThe 91-year-old actor, who has macular degeneration, told BBC Radio she can no longer act on stage or in films, or read.
She said she can no longer recognise faces and sometimes mistakes strangers for people she knows.
Dench has enjoyed a seven-decade career, including an Oscar-winning role in Shakespeare in Love and eight appearances as โMโ in the James Bond films.