Progressive reading glasses. Do they exist?

K

Kevin the grey

Joined
Aug 26, 2005
Messages
4,106
Following a visit to the local Optometrist. I acquired three pairs of reading glasses. One for the throne room , a pair for in front of the computer and one for the car. Well prepared and rarely without.

You could see me glancing down and squinting up from keyboard to screen in a most comical manner all the livelong day.

While at a local fleamarket scavenging over my friends library of used books I came upon a stall with several pairs of glasses.

Leery of leering I peered without 'ppearing. (Insert happy face holding his nose here.)

Among those unsuitable I came across a pair that fit the bill admirably. Set up more like full prescription glasses they handled reading at close range well. I prefer a full lense as the frames interfere with my peripherics.

Much to my surprise both keyboard and screen were in full relief. The full lense while impossible to peer over focussed in on all I surveyed . There seems to be a superior system of gradation from near to far with the last upper bit of plain glass to not hinder my undamaged ability.

There is a clear progression of magnification from near to far . I realise my terminology is faulty . I have not focussed in much on it. Do glasses such as this exist? They must be a pretty penny more than even the good quality reading glasses I purchased at Lenscrafters.

I suggest those of you who can to look into this . Especially for those of us imprisonned atwixt text and hexed. (Insert another one of those stinkers in here.)
 
Did you see the glasses that they made for Africa.

Each lens consists of clear piece of plastic with a space in the middle, and they inject gel with a syringe, how much depends on how bad your eyes are.

regards.

John.
 
Tinderbox (UK) said:
Did you see the glasses that they made for Africa.

Each lens consists of clear piece of plastic with a space in the middle, and they inject gel with a syringe, how much depends on how bad your eyes are.

regards.

John.
Click to expand...

My goodness. It gives squint and squirt a whole new meaning.(stinker)(double pun intended)
 
Kevin, trying to decipher your words, I came up with this:

There are progressive lens that increase adjustment towards the bottom of the lens. This allows you normal vision when looking straight ahead.

Next time I get glasses I want the lens adjustment to begin sooner, more in midline than the lower third. These would be for reading, and if I had to go outside quickly and shoot a Coon, I can do this.


Many shooters state that the progressive lens allows them to use iron sights again, despite their age. YOu move your head untill everything lines up.


munk
 
The question I raised was if there were progressive reading glasses with the near distances all being in focus and the progression towards the top of the lens ending in plain glass.

The only progressive glases I knew of up to this point were prescription from top to bottom with no plain glass.
 
You could have some ground that way, but they'd still be expensive. "Plain" is just not quite as strong as -1.
 
I don't know why they'd be any more expensive than having any regular prescription filled and glasses made. I'm going to ask, when I get my next pair.


munk
 
The factors that might add to the cost would be complexity of grind and how close to unique they would be.

As no-one seems to know of them it makes me less sure that is what I have. For fifty cents they sure work well . As far as ease of use goes they are priceless. Infinitely easier to use than regular reading glasses.

The only time there is any disclarity is if I tilt my head. Otherwise vision from near to far does not seem to be impeded in any fashion . The muscles around my eyes are never more relaxed than when I have them on.

It is not so much that near and far are clear. That could be handled adequately even by bifocals.Half reading,half clear. It is the middle distance Where reading glasses obscure normal vision.
 
A regular prescription = single vision lens. When they grind it, all they have to worry about is the prescription (e.g. -2, -3.25, etc.) and where the pupil is. Bifocals are more complicated in that most of the lens is one prescription, but one distinct region is another. Progressives are more complicated still in that while much of the lens is one prescription, there's a region that is a different one, and it it gradually blends to become the primary one. It's just a lot more complicated to do.

Now, I'm ignoring stuff like aspherical lenses, astigmatism, etc. For all I know, progressive lenses get ground on the same machine and the only difference is the tech has to punch a couple more numbers into a computer.
 
You must log in or register to reply here.
Back
Top