Converting your reading strength into intermediate strength

If You Need Reading Strength:	Try Top-Bifocal Strength:
+1.00	+.50
+1.50	+.75
+2.00	+1.00
+2.50	+1.25

Most people are familiar with their reading magnification, which is the strength you need to help you read material placed about 14" from your eyes.

In certain circumstances, such as reading sheet music or the computer screen, we need to read material placed farther. In this case, the reading strength is too strong and will distort your vision.

The above chart is designed to help you decide what Top-Bifocal stregth you need, based on your regular reading glass strength.

Though you don't need a prescription to buy "Top-Bifocal Reading Glasses", you should visit your eye professional at least once per year.