Blog

Multi Focal Readers With No Power On Top

At least a handful of people ask each week if we have no-line bifocals. Technically, the only way to make a true "no line" lens is to make the bottom power GRADUALLY progress to the the top power. And when there's a middle gradual power, it's no longer classified as a bifocal, it's a multi focal. If you are reading this page, you are probably already familiar with this unfortunate limitation of "no-lines".

Diagram depicts the no-line gradually weakening middle portion of progressive readers

The second question people ask is, "Can I get a multi focal with zero power on top?" Yes, you can. But chances are don't want a pair. The reality doesn't live up to the ideal. The TOP part of a pair of over the counter multi focals is about 50% of the bottom power, and that middle part gets progressively weaker from bottom to top. When we tried to sell zero top no line multi focals, we got thousands and thousands of dollars worth of returns. The change from bottom to top was too drastic. Customers couldn't "focus" through the area that went from to zero on top.

Another practical consideration is the task at hand. Many people wanted zero top no line readers to drive in. Ideally, they'd look through the top portion to see the road, and the bottom part to see the console. However, by default, these glasses fit so that one's eyes align with the middle of the lens. This is the "gradual" area and is not idea for driving and other distance tasks. If you are spending way too much time looking for zero top mutli focals, or no line bifocals on the internet, this is why. Almost all over the counter no-line multi focals are designed for office work, or multi tasking at home, such as scrolling on your phone while you watch TV. Ideally, there SHOULD be one pair of glasses that does EVERYTHING. But in reality, there are always pros and cons, depending on what you want your readers to do.

Diagram depicts different lens areas of a multi focal no line reader

Festive And Warm Red Reading Glasses

Red is the perfect holiday color, exuding warmth as well as festive cheer. Click on the photos below to see further details about the glasses you like. All are available as readers, and most are available as ClearBlue computer & device glasses. You can view ALL of our high end red reading glasses here>>

About Bifocal Reading Glasses

Bifocal reading glasses have zero magnification on top, with an area of reading glasses at the bottom so you can look far away without distortion, then peer down when you need to read. GREAT for multi tasking, driving, shopping, dining, knitting, reading music and more. Dozens of HOT, quality bifocal reading glass styles, most under $20

How To Order Reading Glasses Only From Your Progressive Rx

If you wear progressive eyeglasses, but you want to buy a separate pair of glasses dedicated to reading, how do you figure out your reading power?

It's pretty simple, but take a second to absorb the info. It involves simple addition, but can be subtly tricky. All you have to do is add the OD sphere to the OD "Add" for the right eye reading power, and the OS "sphere" and OS "add" for the left eye reading power. In the example below, both eyes will have a +2.75 reading power. How to read your reading glass power from a progressive prescription

A common mistake occurs when people add up the wrong numbers. Be careful not to add up your sphere to your sphere, or your "add" to your "add". A common mistake in interpreting your progressive prescription

Keep in mind that your sphere may be a negative number. When this happens, utilize the usual rules of adding negative to positive numbers. In the example below, note that -.75 + +1.50 = +.75, so the reading power is +.75, and that is for both eyes, since both eyes in this rx are the same.

Optician Josh of My Eyeglass Club explains this all in the video below. Since reading glasses are our only business, we partner with My Eyeglass Club to fill the prescription needs for some of our customers.

Sign up to receive the latest eye-wear tips!

Subscribe

* indicates required

ATTENTION; READY-TO-WEAR NON-PRESCRIPTION GLASSES ARE NOT INTENDED TO REPLACE PRESCRIBED CORRECTIVE LENSES OR EXAMINATIONS BY AN EYE CARE PROFESSIONAL. CONTINUOUS EYE CHECK-UPS ARE NECESSARY TO DETERMINE YOUR EYE HEALTH STATUS AND VISION NEEDS.
**Lenses +2.75 and stronger can only be sold to those replacing their current diopter prescription.
Copyright © 2022 Debby Burk Optical. All Rights Reserved.