She added: “The macula, the centre part of the eye responsible for detailed vision, can also swell, too, causing vision loss.”
What’s more, consistently high blood sugar levels can also affect your sex life.
Dr Karra explained: “Excess sugar in the blood damages the nerves and blood vessels that play a crucial role in making sex enjoyable or even possible.
“Men may experience erectile dysfunction due to blood vessel damage, and some can have a problem with retrograde ejaculation, in which semen travels to the bladder instead of through the tip of the penis.”