I use varifocals for everything. Took some getting used to at first I recall, but it's now been some years and am totally at home with them. Each new pair presents a fresh challenge for a few days though.
I also have a separate pair of sunglasses in varifocal.
Sorry to disagree.I use Varifocals and they are no good for the computer.You end up with a stiff neck and strained eyes.If you use the computer a lot.Just measure how far from the screen your eyes normally are.And get your eyes tested from that distance.It makes a big difference.Varifocals will do you for reading and distance.Now if you tend to read a book about the same distance away as your computer your normal glasses should suffice.
although I don't need specs for reading. I admit that the need to move ones head up and down a little to use the correct part of the lens causes a few days disorientation at first but I would not go back.
For the sun, I have polarised clip-overs from a Company, imaginatively, called Leader. They are so incredibly light that one hardly notices that they're there. The Optician that sold them to me had a little Black Box with about 80 different shapes and sizes in it, so my specs were matched exactly. The ones I bought have 4 tiny hooks which attach them to my specs @ 20 Guineas, the company also makes a design with a bar across the top which are slightly heavier.
If I was a bit younger I would go for laser Eye Treatment.Never tried contact lenses so cannot comment on that.Try a few glasses at your local pub that might improve your sight or at least you will think it does.