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Deciphering your contact lens prescription may seem daunting, but Ottika is here to guide you through the process. Below, we break down the key elements of your contact lens prescription to ensure you can confidently choose lenses that suit your vision needs.

1. Sphere (PWR or SPH):
- Denotes the main lens power needed to correct nearsightedness (negative values) or farsightedness (positive values).
- Measured in diopters (D); higher numbers indicate stronger prescriptions.
- Addresses astigmatism, a condition caused by an irregular cornea or lens shape.
- Positive or negative values signify the degree of astigmatism correction required.
- Specifies the angle (in degrees) for astigmatism correction.
- Ranges from 0 to 180; ensures proper alignment of the cylindrical power.
- Represents the curvature of the back surface of the contact lens.
- Ensures a comfortable fit on your eye; measured in millimeters.
- Indicates the width of the contact lens.
- Measured in millimeters; ensures proper coverage on your eye.
- Specifies the brand and material of the contact lens prescribed.
- Different materials offer varied comfort levels and oxygen permeability.
- Some contact lens prescriptions have an expiration date.
- Ensure your prescription is up-to-date for accurate vision correction.
- Sphere (PWR): -2.50
- Cylinder (CYL): -1.25
- Axis: 180
- Base Curve (BC): 8.6
- Diameter (DIA): 14.2
- The contact lens corrects myopia (nearsightedness) with a power of -2.50 diopters.
- Astigmatism correction is -1.25 at an axis of 180 degrees.
- The base curve is 8.6, and the diameter is 14.2.
FAQs
Can I use my vision insurance?
Yes you can! We provide invoices for all eyewear that you can submit to your insurance company. To learn more visit our vision insurance page. Vision insurance discounts are up to your insurer and coverage.
How much do you charge for shipping?
Orders worth more than CAD $100.00 in Canada, USD $100 in United States & Globally above CAD $250 qualify for Free Shipping.
Our standard shipping cost is based on area, country & postal code and shipping services selected, calculated by carrier.
How long will it take to get my order?
We strive to ship your order on the same day. However, standard shipping to the Greater Toronto Area takes 2-3 business days, Standard shipping to the rest of North America takes 5-7 business days (USA & Canada) and Globally may take little longer based on country & shipping services selected. If your order is urgent, we recommend Express shipping.
Contact Lenses & Prescription Glasses are Processed from Vancouver, British Columbia.
My question is not listed above.
For more details, please check out our FAQ, or don't hesitate to reach out to us via chat if you have any questions!




