What is the typical measurement format for describing a toric lens?

The typical measurement format for describing a toric lens is indeed best represented by base curve, power, cylinder, and axis.

In the context of toric lenses, which are specifically designed to correct astigmatism, each of these parameters serves a unique role. The base curve refers to the curvature of the lens that aligns with the eye's curvature and ensures proper fit on the cornea. The power indicates the strength of the lens needed to correct vision. The cylinder measurement represents the degree of astigmatism correction required, and the axis indicates the orientation of the cylinder in degrees, which is crucial for aligning the lens correctly on the eye.

This measurement format allows for precise adjustments and a better fit for patients, ensuring optimal visual acuity and comfort. Other options may list relevant factors but do not capture all the necessary components involved in describing a toric lens specifically.