Logging in on main site

Main website: logging in.
Would it be possible to make the Password field “read” “visible”, I don’t know how to put it. On other websites, at the password stage, there is a button shaped like an eye, so that you can see what you’re typing. It would be very useful here too.
Just a suggestion for other people like me, who can’t see as well as they used to, to save me peering at the keyboard as I type the password.


Here are two examples from other websites which I use.