Bifocals: Computer/Reading
When you're on the hunt for the perfect pair of glasses to tackle both computer work and reading, computer/reading bifocals (with a classic line dividing the two powers) are a game-changer! These handy glasses combine two lenses to give you crystal-clear vision at both intermediate distances (like your computer screen) and near distances (for reading your favorite book or texting your friends).
If you're thinking about trying out computer/reading bifocals, it's important to adjust your multifocal prescription just right to get the best possible vision. Don’t worry, we’ve got your back! In this guide, we’ll walk you through the simple steps of adjusting your prescription and also introduce you to Workspace Progressives, our no-line, seamless alternative that lets you see clearly without the visible lines.
What Are Computer/Reading Bifocals?
Bifocals have a distinct line between the two sections of the lens, one for distance and one for near. However, adjusting your multifocal prescription will customize your bifocals for intermediate and near vision.
Intermediate Vision: This is the distance you typically use when working at a computer or looking at mid-range objects.
Near Vision: This is for reading or other close-up tasks like writing or using a smartphone.
How to Adjust Your Prescription for Computer/Reading Bifocals
To get the perfect prescription for your computer/reading bifocals, follow these steps to adjust your multifocal prescription:
Split the ADD Power in Half
Your prescription will typically include an "ADD" value, which indicates the extra power needed for near vision (reading). To adjust for computer/reading bifocals, you’ll need to divide the ADD value by two.
Example: If your ADD value is +2.00, split it into +1.00 for each eye.
If the ADD number doesn’t divide evenly (like an ADD of +2.25), you can make a small adjustment. You can round up by +0.25 for a closer focus or round down by -0.25 for a slightly farther focus. It’s all about personal preference and how you use your glasses.
Adjust the Sphere Value
Once you’ve split the ADD, add the adjusted half of the ADD power to the sphere (SPH) value for both eyes. The sphere value helps with the correction of nearsightedness or farsightedness.
Example: If your sphere value is -2.00 and your ADD is +2.00, you’ll add +1.00 to your sphere value, making it -1.00 for computer/reading.
Keep the Cylinder and Axis the Same
Your cylinder (CYL) and axis values should remain unchanged from your distance prescription. These values help with astigmatism correction, and they don’t need to be adjusted when ordering bifocals.
Enter the Remaining ADD Power
The second half of the ADD power that you didn’t use in the sphere field should go into the ADD field on your prescription. This ensures that your lenses have the correct near vision power for reading.
Now you’re ready to order your computer/reading bifocals with an adjusted prescription that’s tailored to your needs!
A Great Alternative: Workspace Progressives
If you prefer a more seamless look and feel to your glasses, workspace progressives are an excellent alternative to computer/reading bifocals. Our mid-range and near-range progressives are designed to enhance comfort and clarity for close-up and computer work without distance vision.
If you’re someone who needs a versatile solution but wants to avoid the traditional bifocal line, workspace progressives are the way to go, and there's no need to adjust your prescription. Simply enter your regular prescription when ordering, and our lab will automatically adjust the prescription. It's a hassle-free, seamless solution that works great for computer and reading use.
Need Help with Your Prescription?
If you need any assistance in adjusting your prescription for computer/reading bifocals or choosing the right lenses, feel free to contact us. Whether you go with bifocals or workspace progressives, we want to ensure you get the perfect pair of glasses for your needs.
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