A word of warning. Many years ago - about 30 - dh got contact lenses for the first time. The optician - part of a national chain - was very proud of its computer measuring kit, that worked out the curve and diameter required for the lens.
So, he got his lenses, and had problems with them. He went to a smaller optician, and their trial lenses were, according to him, more comfortable than the others. He found that his cornea had been scratched by the computer-fit lenses.
6 months later, he developed iritis and stopped wearing lenses.
I've just had a lens check. I was waiting for a new prescription to order them as I didn't have much confidence in the opthalmogist who did our eye tests - she got dh's prescription out - -10 when he was 'only' -9.
I've been told not to wear them any more, as although my eyes aren't dry, there isn't much of the oily phase in my tears to lubricate the eye and a morning's wear on the way to the optician had caused a scratch. So, from monthly continuous wear lenses, if I wear them, it's got to be occasional daily disposable ones for me.
Pity, 'cos I did like wearing them rather than varifocal glasses.