This tool helps you find the perfect power needed for reading, computer use, or any other activity requiring clear vision at a close distance.
How to Use the Tool:
⦁ Measure the distance in meters from your eyes to the object (e.g., book, screen) using a ruler.
⦁ Enter this distance in the field below.
⦁ You will then receive YOUR individually calculated addition (ADD) based on the entered distance.
Example:
⦁ If you need to read notes on a music stand one meter away, you will need a different ADD and power for your reading glasses compared to when you are a silversmith needing to see clearly at a working distance of 20 centimeters.
Your ADD Value
COMPUTER GLASSES:
Note that the power of your glasses for computer use (e.g., +1.50) will likely differ from those ideal for reading (e.g., +2.50). Using reading glasses with too strong a power can result in an ergonomic position of the body, head, and neck that often causes headaches and other stress. This issue also occurs if you spend time in front of the screen wearing progressive glasses.
For occasional use, this is not a problem. However, if you spend significant time at the computer, you will benefit from having a pair of individually measured and fitted computer glasses.
Calculator
Near distance
You calculated ADD:
This is the optimal near vision addition (ADD) you need for seeing clearly.
Now proceed to the “PantoGlasses Near Vision Calculator” to determine the optimal power for your reading, computer, or other near-vision needs.This is calculated by combining your distance vision prescription with your ADD value.
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