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OD is an abbreviation for the Latin term oculus dexter which means right eye. Notice that the right eye information is asked for first even though we typically read from left to right.
OS is an abbreviation of the Latin oculus sinister which means left eye. That will be referenced on the far right column of the prescription.
SPH is short for sphere. The sphere of your prescription indicates the power on the lenses that is needed to see clearly. A plus (+) symbol indicates the eyeglass wearer is farsighted. A minus (-) symbol indicates that the eyeglass wearer is nearsighted.
CYL is short for cylinder. The cylinder indicates the lens power necessary to correct astigmatism. If the column has no value (is blank), it indicates that the eyeglass wearer does not have astigmatism. If this is the case on your prescription, you can leave it blank when entering it in.
AXIS is a prescription will include an axis value for those with astigmatism. This number represents the angle of the lens that shouldn't feature a cylinder power to help correct your astigmatism.
ADD is short for "additional correction." This is where details about bifocals, multifocal lenses or progressive lenses would appear.
OD is an abbreviation for the Latin term oculus dexter which means right eye. Notice that the right eye information is asked for first even though we typically read from left to right.
OS is an abbreviation of the Latin oculus sinister which means left eye. That will be referenced on the far right column of the prescription.
B.C. is short for base curve measurement indicates the back curvature of your contact lens, in millimetres. This is important for comfort, as the BC of your contact lenses should match your eye's natural curve as closely as possible to ensure a better fit when you are wearing your contact lenses.
DIA is short for "diameter," or the distance from one edge of the contact lens to the other. This is measured in millimeters.
SPH is short for sphere. The sphere of your prescription indicates the power on the lenses that is needed to see clearly. A plus (+) symbol indicates the eyeglass wearer is farsighted. A minus (-) symbol indicates that the eyeglass wearer is nearsighted.
CYL is short for cylinder. The cylinder indicates the lens power necessary to correct astigmatism. If the column has no value (is blank), it indicates that the eyeglass wearer does not have astigmatism. If this is the case on your prescription, you can leave it blank when entering it in.
AXIS is a prescription will include an axis value for those with astigmatism. This number represents the angle of the lens that shouldn't feature a cylinder power to help correct your astigmatism.
ADD is short for "additional correction." This is where details about bifocals, multifocal lenses or progressive lenses would appear.
*Discount applied on the current website price at the time of order. Offer only valid for new customer first contacts order over $10. Maximum discount of $100. Cannot be combined with any other offers. Promotions are subject to change without notice. We reserve the right to cancel orders that are in breach of the terms and conditions of this offer.
| Lens Width | Bridge Width | Temple Length | |
|---|---|---|---|
| XS | < 42 mm | < 16 mm | <=128 mm |
| S | 42 mm - 48 mm | 16 mm - 17 mm | 128 mm - 134 mm |
| M | 49 mm - 52 mm | 18 mm - 19 mm | 135 mm - 141 mm |
| L | >52 mm | >19 mm | >= 141 mm |
Stepping away from your computer lets us measure your distance vision. You'll need to stand about 10 feet from your screen.
You'll tell us what you see on your computer screen while using your mobile phone as a remote control. You won't have to download any apps.
You'll use a credit card or business card to calibrate your screen for the vision test.
Your previous eye prescription is required. Our ophthalmologists and optometrists will need to use it to ensure your renewed Rx is clear, correct and comfortable.
The test is available to those aged 18 to 55 years old.
The online eye exam is available for all Canadian individuals and American individuals residing in current states. Click here for details.
You'll need to verify that you don't have any underlying medical conditions that impact your vision. See our FAQ section for more info.
Skip the trip to the eye doctor's office (save the gas!) and take our test within 15 minutes from the comfort of your own home.
You will receive your digital prescription, signed by a licensed ophthalmologist, right in your inbox within 24 hours.
Use your shiny new eye prescription to place and order with us for contacts or eyeglasses
The online vision test operates under the Enforcement Policy for Remote Ophthalmic Assessment and Monitoring Devices during the CoronaVirus Disease (COVID-19) Public Health Emergency issued by the FDA in April 2020.
An ophthalmologist or an optometrist in your area will evaluate your results and previous Rx. They'll then write and officially sign your renewed vision prescription.
Within 24 hours, you'll get an official, signed Rx to buy contacts or glasses. The Rx is then valid for 1 or 2 years depending on your state or province.
Our live customer care team is always available to help if you have any questions or need any assistance with your test.
A. You must be between 18 and 55 years old.
A. We only provide prescriptions between -10.00 and +3.50 in spherical strength (SPH), -0.25 and -3.00 in cylinder power (CYL) and +0.25 and +4.00 in add power (ADD). Your previous prescription is required for all new contacts and most glasses prescriptions.
A. Your eyes must be healthy and you can't have any medical conditions that impact your vision. You can't use Online Vision Test if you have had diabetes.
A. Our service is available in the following 32 states: Alabama, California, Colorado, Connecticut, Florida, Hawaii, Illinois, Iowa, Kentucky, Massachusetts, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New York, New Hampshire, North Carolina, North Dakota, Ohio, Oregon, Pennsylvania, Rhode Island, South Dakota, Tennessee, Texas, Utah, Virginia, Washington, Wisconsin, and Wyoming.
A. Yes. If you don't know your Rx, we can get a copy from your last doctor. But this might cause delays in getting your online prescription.
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