What is the spherical equivalent of +2.00 +5.00 x 180?

What is the spherical equivalent of +2.00 +5.00 x 180?

• A. +2.50
• B. +3.00
• C. +4.50
• D. +5.00

Answer: (C)

To find the spherical equivalent of a given prescription with both spherical and cylindrical components, you start by taking the sphere value and adding half of the cylinder value. In this case, the prescription is +2.00 (the spherical component) and +5.00 (the cylindrical component with the axis of 180 degrees). To calculate the spherical equivalent, you proceed as follows: 1. Take the spherical value, which is +2.00. 2. Add half of the cylindrical value to it. The cylindrical value is +5.00, so half of that is +2.50. 3. Thus, the calculation becomes: +2.00 + (+2.50) = +4.50. Therefore, the spherical equivalent for the prescription +2.00 +5.00 x 180 is +4.50, making the correct answer the one that represents this result.

To find the spherical equivalent of a given prescription with both spherical and cylindrical components, you start by taking the sphere value and adding half of the cylinder value. In this case, the prescription is +2.00 (the spherical component) and +5.00 (the cylindrical component with the axis of 180 degrees).

To calculate the spherical equivalent, you proceed as follows:

1. Take the spherical value, which is +2.00.

2. Add half of the cylindrical value to it. The cylindrical value is +5.00, so half of that is +2.50.

3. Thus, the calculation becomes: +2.00 + (+2.50) = +4.50.

Therefore, the spherical equivalent for the prescription +2.00 +5.00 x 180 is +4.50, making the correct answer the one that represents this result.