Quick Asked: Understanding Your Contact Lens Prescription?

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Last update: 11 Feb, 2024 264 Views

What to know about a contact lens prescription? What You Need to Know About Your Contact Lens Prescription

  • Base Curve. Base curve (BC) pertains to the back curvature of your contact lens and is measured in millimeters. ...
  • OS/OD/OU. Ocular sinister (OS) refers to the left eye, while ocular dexter (OD) refers to the right eye. ...
  • Diameter. DIA means diameter. ...
  • Color. The color is only included in your prescription if your contacts are colored.
  • ADD. ...
  • CYL. ...
  • AXIS. ...


What to know before you get contact lenses? Ten Things To Know Before You Get Contact Lenses Come to your eye doctor appointment prepared. ... Understand what the process will be like. ... Decide which type of lens fits best with your lifestyle. ... Just about everyone can wear contacts, even if you have astigmatism. ... If you're going to get lenses just to alter your eye color, treat them with the same care you would a prescription. ... More items...

How do i read my contact lens prescription? 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 both eyes, respectively.

What is the highest prescription for contact lenses? The highest level of corrective power for monthly soft contact lenses is about -12 Dioptres (bear in mind that the average prescription for short sighted people is -2.00 Dioptres), and is available from both Purevision 2HD and Biofinity.

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Here are the things you will commonly see on your contact lens prescription: OS/OD/OU – OS stands for the left eye. OD is for the right eye. If you see OU, then the prescription is the same measurement in both eyes. BC – This stands for base curve. The lower the number, the steeper the curve is in your cornea. DIA – This stands for the diameter.

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