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How to read your glasses prescription

How to enter your glasses prescription

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.

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How to read your contacts prescription

How to enter your contacts prescription

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.

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*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.

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Unfortunately, we can't offer direct billing on Autoship orders just yet, but we're actively working on it! In the meantime, here's what you can do:
  • To keep Autoship: Place your order as usual and submit a claim to your insurance provider afterward.
  • For direct billing now: Unselect the Autoship option at checkout and we'll process your insurance claim directly.

Subscribe and save* with Autoship Logo

Save 15%
Increased savings
on future orders
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On every order
Free Shipping
on all future orders
Loyalty Rewards
Top tier savings & perks with each reorder
Measurements
If you already have a pair of glasses, you can compare the measurements to your current frame. Just look inside your temple to find your frame measurements. The overall frame size is a combination of lens and bridge's width measurements.
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
Direct Billing:
5 Simple Ways You Save Money
With the widest eyewear insurance coverage in Canada, KITS makes it easy to save with direct billing. You pay only what you owe at checkout, and we handle the rest.
1.
Instant Savings
Know your costs upfront and pay only the remaining balance, if any.
2.
Extensive Provider Network
We work with more insurance providers than any other online eyewear retailer in Canada, ensuring you're covered. Your access to savings is our priority.
3.
Convenience
Experience the ease of direct billing. No more waiting for reimbursements or dealing with paperwork - simply pay your portion at checkout and enjoy your new eyewear.
4.
Your Eyewear All In One Place
From glasses to contacts to a wide selection of designer eyewear, we've got your vision covered. Simplify your shopping with direct billing and find everything you need in one place.
5.
Peace Of Mind
Enjoy your new eyewear without any paperwork hassles. Plus, you won't have to wait for reimbursement.
Curious About Your Coverage?
Learn how it works and see if we are teamed with your carrier. We work with more providers than any other online eyewear retailer in Canada, making getting the coverage you need easy.
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Why They Love Us, Why You'll Love Us Too
Loved that Kits direct billed my insurance
Quick and easy process. Loved that Kits direct billed my insurance and glasses were shipped out and arrived very quickly.
Jasmine - Verified Customer
I liked the direct billing to my benefit plan
Very pleased with the site as well as fast delivery. The site was very user friendly and I liked the direct billing to my benefit plan. I will absolutely recommend
West - Verified Customer
I won't order glasses or contacts from anywhere else!
I love that kits direct bills to green shield. The prices are unbeatable and there are countless styles to choose from. I love how easy it is to order and there are always great deals. I won't order glasses or contacts from anywhere else!
Taylor N - Verified Customer
Direct billing with insurance is a major positive factor
Excellent customer service. Fast response time and very quick shipping. Direct billing with insurance is also a major positive factor.
Alban - Verified Customer
We Have All Your Eyewear Needs Covered
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