OPT 160 Study Guide | 100% Correct Answers | Verified | Latest 2025/2026 Version

_____________ is a procedure designed to measure the prescription in spectacle lenses. -
✔✔Neutralization
In ophthalmic notation, OU stands for ____________. - ✔✔Both eyes
A plano lens _______________. - ✔✔Has no refractive power
Which of the following is correct regarding lensometry?
A. It determines the power of a lens.
B. It determines the direction of a prism.
C. It determines if there is cylindrical power present.
D. All the choices stated above are correct. - ✔✔D. All the choices stated above are correct.
A "plus" lens is also known as a _________ lens. - ✔✔Convex
Which of the following is a prescription for a patient with myopia and astigmatism? - ✔✔-1.00+0.50
X120
Transpose the following prescription: +3.00-1.00 X60 - ✔✔+2.00+1.00 X150
If the closely-spaced triple lines appear broken when looking through the eye-piece of a lens meter, you
need to _______________. - ✔✔Rotate the axis wheel at the same time as you adjust the power drum.
When using a lens meter, the first thing you must do is ___________. - ✔✔Focus the eyepiece.