In the old method, which statement best describes how results were obtained?

In the old method, which statement best describes how results were obtained?

• A. They were read using a lensometer after stacking powers
• B. They were read on a lensometer after stacking SCL and SCOR powers
• C. They were inferred from sphere power alone
• D. They were estimated by patient feedback

Answer: (B)

In the old approach, the final optical effect of a toric lens was obtained by measuring the lens with a lensometer after physically stacking the spherical contact lens power (SCL) with the cylindrical/scor power (SCOR). By placing both components together and aligning the cylinder axis, you capture the combined power the patient will experience along the two principal meridians. This direct readout reflects the total refractive effect of the toric lens, including both sphere and cylinder contributions, and accounts for axis orientation. That makes it the best description because the other options rely on incomplete information: relying on sphere power alone ignores the cylindrical component; patient feedback is subjective and doesn’t provide the precise optical measurement; and simply “stacking powers” without specifying the SCL and SCOR components would not accurately represent the toric lens’s final effect.

In the old approach, the final optical effect of a toric lens was obtained by measuring the lens with a lensometer after physically stacking the spherical contact lens power (SCL) with the cylindrical/scor power (SCOR). By placing both components together and aligning the cylinder axis, you capture the combined power the patient will experience along the two principal meridians. This direct readout reflects the total refractive effect of the toric lens, including both sphere and cylinder contributions, and accounts for axis orientation.

That makes it the best description because the other options rely on incomplete information: relying on sphere power alone ignores the cylindrical component; patient feedback is subjective and doesn’t provide the precise optical measurement; and simply “stacking powers” without specifying the SCL and SCOR components would not accurately represent the toric lens’s final effect.