It is important to note thatan eyeglass prescription is different than a contact lens prescription. Eyeglass lenses are positioned at a distance from the eyes, while contact lenses rest directly on the eye’s cornea. That difference affects the lens power, among other things, required for your ...
In addition to the information in an eyeglass prescription, a contact lens prescription must specify the base (central) curve of the back surface of the contact lens, the lens diameter, and the specific manufacturer and brand name of the lens. Also, the power of an eyeglass prescription freque...
Both eyes are being prescribed an "add power" of +2.00 D for the correction of presbyopia, and this eyeglass prescription includes a prismatic correction of 0.5 prism diopter in each eye. In the right eye, the prism is base down (BD); in the left eye, it's base up (BU). Now you ...
Eyeglass prescription numbers Generally speaking, your prescription for vision correction will be represented as a positive or negative number, wherethe more your prescription number deviates from zero, the worse your vision is and the more vision correction(stronger prescription)you require. ...
After your contact lens exam (or fitting), you’ll receive a prescription similar to an eyeglass prescription, but with a few additional columns that are specific to contact lenses. Identify which eye you are reading a prescription for. The right eye is noted as OD; the left eye is noted...
The values in these columns then tell the optometrist how much corrective power your new eyewear needs for each condition (if applicable), on top of whether you have a normal eye axis or not. Let’s go through the commonly seen terms on an eyeglass prescription: Oculus dexter (OD): This...
How to Replace Eyeglass Earpieces How to Remove the Side Shields of Prescription Safety Glasses How to Replace the Grip on a Graphite Golf Shaft Earpieces on eyeglasses are the ends of the temple piece/support arms that rest on top of and/or behind the ears. The term “earpiece” can ...
Now, the fun part—choosing eyeglass frames that gel with your sense of self. The good news: You have lots of options. While classic black and brown frames are still pretty popular, today’s glasses come in numerous colors and patterns, from tortoiseshell patterns to transparent crystal. ...
Eyeglass repair kits such as our Feel Good Handy Kit are perfect for tightening screws on your glasses. If you find your glasses very quickly becoming loose again, you may need to replace the screws. See below for more tips on how to tighten glasses. Make minor adjustments Avoid making ...
How to Read Your Eyeglass Prescription When you look at your prescription for eyeglasses, you will see numbers listed under the headings of OS and OD. They are Latin abbreviations: OS (oculus sinister) means the left eye and OD (oculus dexter) means the right eye. Occasionally, you will ...