Actually, at the store, you will be asked to see a reading test card, sometimes known as a Diopter Test. This card will have rows of words, ranging from small to large. Each line will have a corresponding prescription. That will be your starting point for trying on reading glasses.Keep in mind that prescription numbers for reading glasses increase by .25 diopters. For example, +1.00, +1.25, +1.50 and +1.75. However, for simplicity, some diopter cards may increase by the .50, or even by the whole number. This is why it is important to remember that your reading test card results are simply your starting point for choosing reading glasses; you will need to try on several pairs to find a perfect match. Hope this helpful.
For those who want to find the proper strength reading eyeglasses glasses without needing to leave their home, simply follow the instructions on reading-glasses strength test. You can easily find a reading-glasses strength test chart online.For those who've just recently started to experience presbyopia, the s Reading Glasses first thing they'll see when looking for reading glasses are a bunch of tags and labels that read similar to the numbers listed below.
The numbers above represent the corrective strength of eyeglass lenses. The units are known as "Diopters" and are typically measured in increments of .25 diopters to differentiate stronger and weaker corrective powers. Someone who would need strong vision correction will likely need reading glasses with a strength around +3.0, while someone who needs only minor vision correction would likely wear reading glasses with a label of +1.25.
For most people new to needing readers, it's highly unlikely that they'll need a high powered lens. Presbyopia like many eye diseases typically starts as a minor vision impediment, and slowly increases as you age. While it's possible for people to need reading glasses that use a strength of 3.5 - 4.0 diopters, glasses like theses are relatively rare, and most people only need low powered readers.
Actually, you need to go to your eye doctors' and he will measure a few things truly vital for your eyes, they are diopters, pupilary distance, pupil height and left-right eye asymmetry. If any of these characteristics is wrong, you will not have a clear vision. Using such wrong reading eyeglasses, these mean headaches, blurry vision or tearing if you use them for a longer time, even half hour. The worst part is that your eyes will get tired more quickly than with prescription eyeglasses. So your diopters will grow faster in time.