If you do a little more research, you will find that "computer glasses" can be single vision, bifocal and/or trifocal. With "computer glasses", it's the placement of the bifocal or trifocal that's different as well as the focal point. It's not mandatory that they are single vision.

Looking up + looking at monitor is a bi-focal
Looking down at keyboard + looking straight at monitor + looking up is a tri-focal.
Looking straight/looking down + looking up is a bifocal.
Looking at a monitor without caring much about keyboard or distance is a single vision lens.

Reading poses a different set of constraints.

I was a trip for the optician. No question about it. Most people don't come in with the knowledge I had. I was comfortable with him. He sold me the first set of frames, but allowed me to get the second and third elsewhere for $90 vs. $140 for his price. I had a vision plan that I used for him and other methods to get the steep discount, but I could not get the steep discount at his office because he didn't accept the other discount.

I was the first person that he created the high bi-focal for and he understood why.

What we are looking for is a set of polorized lenses with the best transmission. I just want the benefits of polorization while driving at night without the loss of intensity.

Any ideas?

FYI: I also measured PD and NPD with my digital camera and I was on the money when compared with his pupilometer. The experiment was interesting.

PS: The reason why you don't get sunburn on your face in the car is that the windshield is made from safety glass which has a layer of plastic in the center.

Wearing glasses, in and of itself, neither improves nor diminishes your eyesight. Simply wear them when you need to, such as in school, when driving (if you drive and need glasses in order to be able to do so safely), when reading (if that's necessary), etc. Myself, I wear glasses when I read, since it is difficult for me to see small print up close. In my case it's age-related and has only been a problem for about the last 3 years or so. Larger print I can see just fine and my distance vision is just fine.

I actually had this debate in school, just because you use them as computer glasses does not define them as such. You can argue that all you want. I refuse to argue it with you any longer.

And that "plastic" on your windshield is actually the UV filter. All windshields have it. And that is the reason that transition lenses will not work in your car.

And I already heard your measuring Pd's with your camera, quite fascinating, you must have gone to an optometrist. Because an ophthalmologist wouldn't let you play around in his office like that, he would let his experienced opticians do their jobs and get you what you need.

So this is a scam?

Computer Glasses for Computer Vision Syndrome Sufferers

Don't patronize me. Computer glasses are defined as single vision lenses used specifically for the computer. Bifocals, Trifocals, and progressive lenses can also be used for computer work, but are not defined as computer glasses. They are defined by their specific names.

When someone here can tell me that they have their ABO or state license for Optiancry then I will listen, otherwise your research online tells me nothing more than you want to prove my license wrong. And you fail. I will no longer argue this point.

Your answer didn't help me either. I'll just ask my eye doctor what it is I am not understanding here.

NoHelp:

Computer glasses are not a scam. It's probably better described as "task oriented glasses" . They are a good thing. We can discuss via PM if you'd like.

Are "computer glasses" what used to be known as "librarian's glasses"? My optician said the latter is the same as progressive bifocals. In NoHelp's link, they are called multifocals for near, intermediate, and far sightedness.

Wondergirl:

I think that Chihuahua didn't have it on her multiple choice exam. But, remember that she said that computer glasses are single vision, so therefore I would siuspect her answer would be no, but notice she won't commit to that.

I think you might be correct. Chihuahua and I disagree on most things, but she fails to provide a reference to back up her statemets. I used a reference from Lawrence Livermore National Labs, a government organization and she would not accept that.
Your librarian glasses allow someone to look at the keyboard or a piece of paper, the monitor and look up at a person. The most complex definite purpose "computer glasses". My $0.02.

KISS
It also makes more sense to me that "computer glasses" which I NEVER heard of before would be bi focal because from what I read the purpose is to adjust from the distance to the screen to the distance of the keyboard and I know that something like that would make a world of difference to my eyes.
I can always adjust the brightness and the contrast rather than get single vision lenses for the screen.

The important thing is to go to your optometrist/opthmologist with the near focal length your interested in and where it's located. The optician can also easily modify a near sighted prescription to the new focal length but may be reluctant to do so.

I'm sure flat-top or progressive can be used. My pair is for when I am lying on the bed with the laptop and occasionally glancieng up at TV. These glasses are annoying to drive with.

I had single vision lenses at my bi-focal strength probably for more than 30 years. Later, I realized that glasses can be made to focus at a particular length.

With the Internet, I was able to find a lot of scarce information and pieced together the essentials of prescribing lenses.

I'm confident that you'll be a lot happier if you get "work specific" glasses.

I'm wondering is there some computer software witch will help me to reduce my diopters? Does anyone know some?

If you are truly near-sighted (myopic) only, you will not do any damage to your eyes by not wearing correction, but will be missing some portion of the visual world out there.

I tell my young myopic patients (under 20) to actually remove the glasses when doing near work as this has been proven (well... only in rabitts and chickens) to worsen myopia over time.

You will feel as if your eyes have gotton weaker when not wearing them after obtaining correction, but this is not the case. You're brain's interpretation of the visual world will change and you won't do as well without the Rx.

My advice, try contacts. Certainly hard to get used to at first, but worth the initial effort.

.well I have to cause my eyes are bad

<POST CLOSED> **OP has not returned and question is over three years old**