Coopervision Toric Calculator: Things You Need to Know


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CooperVision Toric Calculator

CooperVision Toric Calculator

Astigmatism, a common vision problem caused by an irregularly shaped cornea or lens, can make it challenging to find the perfect contact lenses. Toric lenses are specifically designed to address astigmatism by providing different powers in various meridians of the lens. If you’re looking for a simple and effective way to determine the right lens parameters for your prescription, look no further than the CooperVision Toric Calculator.

Coopervision Toric Calculator Formula

This CooperVision Toric Calculator is designed to provide recommended contact lens parameters for toric lenses based on the user’s input values of cylinder and axis. The formula used in the calculator takes into account the following:

Base Curve: A fixed value of 8.7mm is used as the base curve for the recommended lens parameters. The base curve represents the curvature of the contact lens, which affects how the lens fits on the eye.

Diameter: A fixed value of 14.5mm is used as the diameter for the recommended lens parameters. The diameter affects the overall size and coverage of the contact lens on the eye.

Sphere: The sphere value is calculated based on the provided cylinder value. If the cylinder value is greater than or equal to -2.25D, a sphere value of -0.25D is recommended. If the cylinder value is less than -2.25D, a sphere value of -0.5D is recommended. The sphere value indicates the lens’s power required to correct myopia (nearsightedness) or hyperopia (farsightedness).

Cylinder: The user-provided cylinder value (in diopters) is used to recommend the lens parameters. The cylinder value indicates the lens’s power required to correct astigmatism, an irregular curvature of the eye’s cornea or lens.

Axis: The user-provided axis value (in degrees, between 0 and 180) is used to recommend the lens parameters. The axis value specifies the orientation of the cylinder power in the lens, which is crucial for the correct positioning of the toric lens to correct astigmatism.

By inputting the cylinder and axis values, the calculator will display the recommended lens parameters for CooperVision toric lenses, including base curve, diameter, sphere, cylinder, and axis.

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Benefits of Using the Coopervision Toric Calculator

The CooperVision Toric Calculator offers numerous advantages for those in search of the ideal toric lenses:

User-friendly interface: The calculator’s straightforward design makes it easy for anyone to input their prescription values and obtain the recommended lens parameters.

Saves time in calculating lens parameters: Instead of manually calculating the appropriate lens specifications, the calculator streamlines the process and delivers accurate results in seconds.

Increases the likelihood of choosing the right lens for optimal vision and comfort: By providing precise lens parameters based on your prescription, the calculator helps ensure a better fit and clearer vision with your toric lenses.

How the CooperVision Toric Calculator Works

Using the CooperVision Toric Calculator is simple and efficient. Here’s an overview of the process:

Input values: The calculator requires two values from your prescription – cylinder (in diopters) and axis (in degrees, between 0 and 180).

Output values: Based on your input, the calculator generates the recommended lens parameters, including base curve, diameter, sphere, cylinder, and axis.

Step-by-step guide:

1. Enter the cylinder and axis values from your prescription.

2. Click the “Calculate” button.

3. Review the recommended lens parameters provided by the calculator.

CooperVision Toric Lenses: Features and Advantages

CooperVision offers a range of high-quality toric lenses designed to provide clear vision and exceptional comfort:

Advanced materials and design: CooperVision’s toric lenses utilize innovative materials and designs, ensuring optimal comfort and oxygen permeability for long-lasting wear.

Wide range of parameters: With a broad selection of lens parameters, CooperVision accommodates a variety of astigmatic prescriptions, making it easier to find the perfect fit.

Popular lens options: Some of the most popular toric lens options from CooperVision include Biofinity Toric, Proclear Toric, and Clariti 1 Day Toric.

Tips for Successful Toric Lens Fitting

To get the most out of your toric lenses, keep these tips in mind:

Accurate measurements: Always consult with an eye care professional to obtain precise measurements for your prescription.

Proper lens care and maintenance: Follow the manufacturer’s instructions and your eye care professional’s recommendations for cleaning, storing, and replacing your lenses.

Regular check-ups: Schedule regular appointments with your eye care professional to monitor your eye health and ensure your prescription remains up-to-date.

Frequently Asked Questions

What Is the CooperVision Toric Calculator?

The CooperVision Toric Calculator is an online tool developed by CooperVision to assist eye care practitioners in prescribing toric contact lenses. It helps in determining the optimal toric lens selection for patients with astigmatism by inputting the patient’s spectacle prescription and other relevant details.

How Do I Use the CooperVision Toric Calculator?

To use the CooperVision Toric Calculator, you will need to enter the patient’s details including their cylinder, axis, and sphere from their prescription. Then, select the preferred contact lens brand. After inputting the necessary details, the calculator will provide a recommended lens option, including the axis and power.

Can I Use the CooperVision Toric Calculator for All Brands of Toric Lenses?

No, the CooperVision Toric Calculator is specifically designed for CooperVision’s range of toric lenses. While the principles might be similar, each manufacturer’s lenses have their own specific design parameters and fitting guides. If you need to fit another brand’s toric lenses, it’s recommended to use that specific brand’s own toric calculator or fitting guide.

Do I Need Any Specific Training to Use the CooperVision Toric Calculator?

While the CooperVision Toric Calculator is designed to be user-friendly, it’s primarily intended for use by trained eye care professionals. Understanding the basic principles of toric lens fitting and astigmatism correction is essential to effectively use the calculator. However, CooperVision provides ample resources and support for professionals to learn how to use this tool.

Is the CooperVision Toric Calculator Free to Use?

Yes, the CooperVision Toric Calculator is a free tool provided by CooperVision. It’s accessible from their official website and can be used by any eye care professional who is fitting patients for CooperVision toric contact lenses. However, please note that while the calculator itself is free, the cost of the lenses and consultation with the eye care professional is not included.


CooperVision Toric Calculator has proven to be an invaluable tool for eye care professionals in their quest to provide optimal vision correction for patients with astigmatism. By streamlining the process of calculating the correct lens parameters, this innovative calculator has become an indispensable resource in the world of optometry. As technology continues to evolve, so too will the capabilities of tools like the CooperVision Toric Calculator, empowering practitioners to deliver increasingly precise and personalized solutions for their patients.

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