Knee pads typically include features targeting specific needs based on the activity that one may need them for. Generally speaking, each one has the following components: 1. Cap The cap is part of the knee pad where our kneecaps kneel on, and they are available in the following types: Soft...
Surprise! Here’s another eye abbreviation you might see on your prescription. OU is an abbreviation for oculus uterque, which is Latin for “both eyes.” Glossary of Eyeglass Prescription Abbreviations and Terms In addition to OD and OS, your eye prescription is bound to feature several other...
For example, if your prescription says -1.00, you have one diopter ofnearsightedness. This is a fairly mild amount of nearsightedness. If you are -4.25, that means you have 4 and 1/4 diopters of nearsightedness. This is more nearsighted than -1.00 and requires stronger (thicker) lenses...
while a more delicate frame is appropriate for thinner lenses. Your correction values will often determine how thick the lenses need to be, whether you are nearsighted or farsighted. Check the online store that you want to shop to see if they provide advice to help you make the right decis...
An accurate pupillary distance (PD) is essential for clear, comfortable vision when buying prescription eyeglasses. Find out how to measure your own PD. Contrast sensitivity testing Dr. Gary Heiting describes how a contrast sensitivity test can detect vision problems that might not show up on ...
What is 1.59 Polycarbonate Single Vision? Lenses in this index are made out of a special polycarbonate material. They’re massively popular for their price AND their function. Why? Because not only are they durable and impact-resistant, they’re also scratch-resistant and can protect your eyes...