> I got my first bifocals last year. I got the "no line" variety and, so far, I hate them.
They are called progressives (or multi-focal – depending on whom you speak with).
Progressives come in a few «ranges»: near-range, mid-range and all-purpose. There are also «premium» options available, although I am not entirely sure how much different they actually are.
I have found that having two separate pairs of progressives (near-range for reading, laptop use and all-purpose for everything else) works the best. All of them can also be had as the transition variety and with different tint colours, thus obviating the need for a separate pair of shades.
In fact, when I first tried the near-range progressives some 5 years ago, it was an eye-opener in the almost literal sense of the word – the laptop screen flattened and became bigger despite obviously not changing its physical size. It was something that I had struggled with for a long time before the progressives entered mainstream. At high prescription numbers, the lenses for myopia start distorting the true shape of objects which creates mild to substantial visual discomfort, and near-range progressives fix that.
Another source of discomfort might be the suboptimal «Add» number on the script for progressives. This can be fixed by going to an optometrist clinic rather that a street optometrist (or find a reputable and good one first). If the «Add» is too small, the progressives will make little difference compared to conventional lenses, and, if it is too big, they will make it difficult to see in the distance.
Based on own subjective experience, I can't recommend the progressives enough, although a little bit of fine-tuning might be required (none in my case).