When your prescription expires, you won't be able to buy more replacement contact lenses until your eye doctor updates it. This typically will require an eye exam to insure that contact lens wear isn’t affecting the health of your eyes and to see if you require a change in the power of...
What if I don’t have a copy of my prescription? Your prescription details can be found on the side of your contact lens box. If you don’t have your box, we’re happy to contact your eye care provider to get a copy of your prescription for you. ...
How to Read Your Contact Lens Prescription Definitions Brand the name of your contact lenses OD your right eye OS your left eye Power (PWR) the strength of your contact lens Base Curve (BC) the inside curve of your lenses Diameter (DIA) the size of your contact lenses (Astigmatism Only...
DIA (Diameter): This is measured in millimeters and is the width of your contact lens. Brand: Your contact lens prescription must include the brand of contacts being prescribed as there are different parameters set by individual manufacturers. How to Read a Glasses Prescription Now that you know...
How to Read Prescription( Helpful:28 )Back » Eyeglasses RX Sample Power(pwr)(-20.00 to _20.00) The strength or amount of correction. Base Curve (bc) (8.0 to 10.0) The curve of the contact lent’s back surface. Diameter (dia) ...
The prescription for contact lenses is slightly different from the one for eyeglasses. For one thing, contact lenses don’t need information on the pupillary distance. That said, contact lens prescriptions typically contain information for: Base curve: How steep or flat your cornea is, which det...
We add your prescription values to your Ace & Tate account, so you can always conveniently access it — and you won't have to fill it in manually. Digging deeper Now you know the different values in your glasses prescription. Read more to find out what might go on with your eyes. ...
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. ...
Because of this and how bent light travels before it enters the eye,there is a complicated formula that can be used to calculate an approximate contact lens prescriptionfrom a glasses prescription, but it doesn’t always work out to be correct. You wouldn’t want to solely use that calculati...
Reading the contact lens power On the contact lens box, read the prescription information from left to right.The prescription should unfold in the following way: Eye, Power (sphere), BC, Dia and Brand. The Eye column will contain either OD, OS or OU, which mean right eye, left eye or...