OD is an abbreviation for the Latin term oculus dexter which means right eye. Notice that the right eye information is asked for first even though we typically read from left to right.
OS is an abbreviation of the Latin oculus sinister which means left eye. That will be referenced on the far right column of the prescription.
SPH is short for sphere. The sphere of your prescription indicates the power on the lenses that is needed to see clearly. A plus (+) symbol indicates the eyeglass wearer is farsighted. A minus (-) symbol indicates that the eyeglass wearer is nearsighted.
CYL is short for cylinder. The cylinder indicates the lens power necessary to correct astigmatism. If the column has no value (is blank), it indicates that the eyeglass wearer does not have astigmatism. If this is the case on your prescription, you can leave it blank when entering it in.
AXIS is a prescription will include an axis value for those with astigmatism. This number represents the angle of the lens that shouldn't feature a cylinder power to help correct your astigmatism.
ADD is short for "additional correction." This is where details about bifocals, multifocal lenses or progressive lenses would appear.
Is it still relevant? Let’s dig in. Back in the day, Sothink was a heavyweight in the Flash tooling space. While their SWF Decompiler was for hardcore reverse engineering, the SWF Catcher was the lean, mean, extraction machine.
Disclaimer: This post is for educational and archival discussion. Always respect copyright laws and terms of service. sothink swf catcher
While Adobe officially buried Flash in 2020, the files themselves (.swf) haven’t completely vanished. They linger on old hard drives, abandoned CD-ROMs, and in the dusty corners of the Internet Archive. Recently, I found myself needing to extract a specific animation from an old proprietary project file. That search led me to a piece of software I hadn’t touched in a decade: Is it still relevant
October 26, 2023 Category: Software Preservation / Utility Review While their SWF Decompiler was for hardcore reverse
I’m talking, of course, about Flash.
If you’ve been in the digital content game long enough, you remember the wild west of the early 2000s web. It was a world of loading bars, “click to activate,” and the glorious, whirring sound of a dial-up modem trying to render a vector animation.
(or find an old license) only if you are a digital preservationist or a retro game hacker . If you have a stack of old projectors, offline e-learning modules, or a need to recover a family animation made in 2004, Sothink SWF Catcher is a reliable crowbar for prying open the past. A Final Note on Ethics Just because you can catch a SWF doesn't mean you should redistribute it. Many of these files are still copyrighted, even if the technology is dead. Use this tool for personal archival, education, or recovering your own lost work.
*Discount applied on the current website price at the time of order. Offer only valid for new customer first contacts order over $10. Maximum discount of $100. Cannot be combined with any other offers. Promotions are subject to change without notice. We reserve the right to cancel orders that are in breach of the terms and conditions of this offer.


| Lens Width | Bridge Width | Temple Length | |
|---|---|---|---|
| XS | < 42 mm | < 16 mm | <=128 mm |
| S | 42 mm - 48 mm | 16 mm - 17 mm | 128 mm - 134 mm |
| M | 49 mm - 52 mm | 18 mm - 19 mm | 135 mm - 141 mm |
| L | >52 mm | >19 mm | >= 141 mm |
Buying eyewear should leave you happy and good-looking. Use our sizing tool to find frames that best fit your unique facial measurements.
Grab a regular card with a magnetic stripe on the back. Student IDs, credit cards and gift cards work well to start our online PD tool.
You may have received our paper PD measurement tool in your recent online order. In order to use this tool, place the ruler on your eyes so that the "0" lines up at the centre in between your eyes. Add up the two numbers, to get your PD. See example below:
Click on this link to download and print your own PD measurement tool.
DOWNLOAD