Which parameter is adjusted last when selecting a toric lens?

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Multiple Choice

Which parameter is adjusted last when selecting a toric lens?

Explanation:
When fitting toric lenses, you first address the astigmatic correction—the cylinder power and its axis. This fixes the meridional differences in focus. After that alignment is set, you finalize the spherical component to correct any remaining overall refractive error (myopia or hyperopia). So the last adjustment is the spherical power. This order keeps the cylinder/axis correction stable before fine-tuning the overall focus.

When fitting toric lenses, you first address the astigmatic correction—the cylinder power and its axis. This fixes the meridional differences in focus. After that alignment is set, you finalize the spherical component to correct any remaining overall refractive error (myopia or hyperopia). So the last adjustment is the spherical power. This order keeps the cylinder/axis correction stable before fine-tuning the overall focus.

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