How to read your contact lens prescription

View the prescription...
as a written prescription
on a box of contacts
Your Docter's Name
1234 Main street. Anytown USA
O.D -1.50 8.4 14.5
O.S -1.00 8.4 14.5

This is just a sample prescription. Yours will likely look different but should contain the same information.

Left Eye (O.S.)
OS stands for "oculus sinister" which is Latin. We'll give you free shipping if you can guess its English translation. It's always listed second on a prescription.

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Frequently asked questions

What happens if your Prescription Expires?

If your prescription is expired, the first step you need is to try our online vision exam known as ExpressExam. This is a 15 minutes test and after that, you will receive your doctor-approved prescription within 24 hours. No hassle to visit a doctor’s office. It is super easy, convenient and time-saving. Note: We only ship your order with a current prescription.

What if you Don’t have a Prescription Copy?

You can check your prescription details on the side of your lens box. In case you've lost your box or unable to locate it, our eye care provider will help you to get a prescription copy.

Do you Need to Order the Brand on your Prescription?

The short answer is ‘yes.’ The brand is an essential part of the prescription and you have to order according to the doctor’s prescription. If you are seeking a comfortable lens, brands play a major role. As each brand is different from the other, so it is important to choose a brand according to your age and condition.

Do you Need to Send us Your Prescription Copy?

Not really! But if you want to send it you can, as it will help us ship your order quickly. But actually, it isn't required. To make it easy for you, we will take care of verifying your prescription with your eye doctor.

What does Power/Sphere (D/PWR/SPH) mean?

Power/Sphere is the figure that shows if you are nearsighted or farsighted. If you are nearsighted, your figure will start with a minus sign, whereas if you are farsighted, your figure starts with a plus sign. Followed by a number from 0 to 0.25 diopters. If your number is higher, you need a stronger visual correction.

What will your prescription include if you need toric lenses for Astigmatism?

If you need toric lenses for astigmatism, your prescription should include values for Axis and Cylinder (CYL). The cylinder is negative in number and increases in 0.25 measures. It refers to the extra visual requirements and the amount of astigmatism.

What will your prescription include if you need toric lenses for Astigmatism?

Axis is the figure that determines the correct angle required to see clearly. It is always a number between the degree 0 and 180.

What does Additional figure (ADD) Determine?

An additional figure is the amount of correction required in the People who suffer from presbyopia and have difficulty seeing clearly at a nearby distance. It is a positive number range between 0.50 and 3.00. In some brands, you can see this figure in low, medium and high.

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