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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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Save 15%
Increased savings
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On every order
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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

KITS Refer-a-Friend Program Terms & Conditions


Last Updated: June 6, 2022

As a Refer-a-Friend member (a "Referrer"), you are subject to KITS' Terms of Use and KITS' Privacy Policy (both available on our website), as well as the following additional Terms & Conditions for KITS' Refer-a-Friend program:

Qualified Referral

A Qualified Referral is defined as a purchase made at www.KITS.com or www.KITS.ca by a person (a "Referred Customer") who arrives to our website by clicking your Refer-a-Friend program link. You are limited to one Qualified Referral for each Referred Customer; in other words, additional/repeat purchases made by a Referred Customer are not counted as additional Qualified Referrals.

Referred Customer

The Referred Customer and the Referrer cannot be the same person (for example, by using a different email address).

Referral Rewards

Referral payments will be made to the referrer 30 days after purchase is made. For you to earn referral rewards as a Referrer, the Referred Customer must complete an order greater than $10 in total value, minus all fees including taxes, discounts, shipping, returns, chargebacks, fraudulent payments, and/or other 3rd party fees.

Reward Payments

The maximum Qualified Referrals earned per calendar year may be no more than 100 Qualified Referrals. As a Referrer, you are responsible for any and all tax liability resulting from Referral Rewards.

Eligibility

Eligibility is limited to individuals only. KITS' Refer-a-Friend Program cannot be used by businesses for affiliate lead generation as determined in KITS' sole discretion.

No Spam

You must comply with all up-to-date "SPAM" laws. For example, emails must be created and distributed in a personal manner and bulk email distribution is strongly discouraged. Any distribution of your referral link that could constitute unsolicited commercial email or "spam" under any applicable law or regulation is expressly prohibited and will be grounds for immediate termination of your account and exclusion from KITS' Refer-a-Friend program.

Right to Close Accounts

KITS reserves the right to close the account(s) of any Referrer and/or Referred Customer and to request proper payment if the Referrer and/or Referred Customer attempts to use the KITS Refer-a-Friend program in a questionable manner or breaches any of these Terms & Conditions or is in violation of any law, statute or governmental regulation.

Right to Cancel Program or Change Terms

KITS reserves the right to cancel the Refer-a-Friend Program or to change these Terms & Conditions at any time in its sole discretion. Any unclaimed referral rewards will be forfeited at that time.