Blended Lenses - Why???

a lot of carpenters wear those

some even have the half moon uppers and lowers... makes hitting the nail much easier

In reply to Jim Pettengill:

I have a pair with a milder magnification that I wear for working under a lift. The whole lense is magnified, but its mild enough that I can look through them and still see around the shop. Normal bifocals definitely don't work under a lift!

Basil Exposition wrote: I just went through this getting a new prescription. I ended up with two pairs of glasses. A distance set fo driving and TV watching and what they called a "business progressive" for wearing at the office for computer work, reading, and working in meetings (up to about 7 feet, I'm told). One of the reasons I did this is because the optician said that the more I tried to stuff into one pair the more compromises would be made. She showed me the "keyhole" of correction and how much narrower it would be if you tried to put long-mid-close ranges in one pair of glasses. You also have to get bigger glasses for more ranges. Changing glasses will be a pain, but since I use the distance in limited circumstances I don't think it will be too bad. I haven't picked them up, yet, but I'll let you know how it goes.

OK, got them today. Very disappointed in the "business progressives." They don't appear to be much better than reading glasses, though I don't have any to directly compare them with. The progressives don't give enough distance to make them worthwhile for anything but reading.

Plus it seems that the left lens prescription is wrong and it is berkeleying up my day.

The distance glasses, however, are great and seem to work for mid and long distances fine.

Have been wearing progressive glasses for 2 years and really love them. When I tried progressive glasses at the first time, the customer service staff from Zenni Optical told me that it usually takes about one week to adjust to the progressive lenses for the new users. Luckily my eyes adapted to them quickly. BTW, the free-form progressive lenses are more comfortable than normal ones.