This tool helps you accurately calculate the parameters for Amo toric lenses for your specific needs.

## How to Use the AMO Toric Calculator

This calculator helps you compute the toric power for your contact lenses prescription. Simply fill in the respective fields:

**Spherical:**Enter the spherical component of your prescription.**Cylindrical:**Enter the cylindrical component of your prescription.**Axis:**Enter the axis of your astigmatism (only values between 0 to 180).**ADD:**Enter the ADD value for additional correction.

Click the ‘Calculate’ button to view the toric power required.

## How It Calculates the Results

The calculator computes the toric power using the following formula: `Toric Power = Spherical + Cylindrical + ADD`

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It also validates the axis value to ensure it’s within the acceptable range (0 to 180 degrees).

## Limitations

- The calculator does not account for higher-order aberrations.
- Ensure the input values are numeric and within the realistic range of vision correction parameters.
- If the axis value is outside the 0-180 degree range, the result will be invalid.

## Use Cases for This Calculator

### Calculate Cylinder Power from Mixed Cylinder

Input the mixed cylinder value along with the axis value, and let the Amo Toric Calculator do the math to separate the cylinder power for you. This feature saves you time and reduces the chance of manual errors when calculating cylinder power from mixed cylinder prescriptions.

### Convert Spherical Equivalent to Sphere and Cylinder

Simply enter the spherical equivalent value and the calculator instantly breaks it down into sphere and cylinder powers. This function helps you quickly decode the prescription details even if only the spherical equivalent is given.

### Calculate Axis Rotation from Two Different Axis Values

Input the two different axis values, and the calculator will determine the axis rotation needed to align the astigmatism correction properly. This tool assists in understanding the axis orientation required for correcting your vision accurately.

### Find Average Power for Multiple Toric Lens Prescriptions

Enter the individual toric lens powers, and the calculator will compute the average power for you. This capability is useful when dealing with multiple prescriptions to ensure an optimal overall toric lens power.

### Determine the Resultant Cylinder Power from Two Different Prescriptions

Input the cylinder powers from two different prescriptions, and the calculator will show you the resultant cylinder power when combined. This function is beneficial for understanding the overall astigmatism correction needed when combining two prescriptions.

### Calculate Over-Refraction by Comparing Current Prescription with Target Power

Enter your current prescription and the target power, and the calculator will compute the over-refraction value required. This feature helps in fine-tuning your prescription to achieve the desired vision quality accurately.

### Estimate the Final Prescription by Adding Over-Refraction to Current Prescription

Input your current prescription and the over-refraction value, and the calculator will generate the estimated final prescription. This function aids in determining the adjusted prescription needed after applying over-refraction for optimal vision correction.

### Calculate Cylinder Power from Axis and Axis Rotation

Input the axis value and the axis rotation, and the calculator will calculate the cylinder power with the correct orientation. This feature simplifies the process of deriving the cylinder power when axis rotation is involved for precise astigmatism correction.

### Verify the Toric Lens Prescription by Inputting Sphere, Cylinder, and Axis Values

Input the sphere, cylinder, and axis values of the toric lens prescription, and the calculator will validate the prescription details. This verification tool ensures the accuracy of the toric lens prescription data for better visual outcomes.

### Quickly Solve Astigmatism Correction Challenges with Toric Lens Calculations

Utilize the Amo Toric Calculator to streamline complex toric lens calculations, from decoding mixed prescriptions to determining over-refraction adjustments. Enhance your efficiency in solving astigmatism correction challenges with this user-friendly and precise calculator tool.