I've just checked - the distance from my glasses to the laptop screen whilst typing is about the same as to an Argos catalogue on my lap at 22inches, so what I wrote makes sense for me; perhaps I'm taller in the body than you or have a different type/mix/strength of prescription or need deeper glasses... I will discuss this at my next eye-test.
There are variants of varifocals for desk based people where the prescription is biased towards middle and near distance, but these are not recommended for distance vision.
I was told that the earlier you change to varifocals after reading starts becoming difficult, the easier it is to get used to them. I am happy with them (except for the cost, £400+ for lenses only!), but I know others who prefer bifocals. Give them a chance and do consult your optician if you are not happy before giving up. Once you need reading adjustment to regular glasses, all options (eg varifocal, bifocal, 2 pairs of galsses, contact lenses lus reading glasses, etc) have advantages and disadvantages unfortunately; what works for one may not be the best for another.
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