Shopko Optician Certification Practice Test

A prescription written as +1.00 OU indicates what?

Cylinder power +1.00 in both eyes Spherical power +1.00 in both eyes Pupillary distance +1.00 Plus lens power measurement

Correct Answer:

Spherical power +1.00 in both eyes

Explanation:

The plus sign with a number on an eyeglass prescription indicates spherical power, and OU means both eyes. A cylinder value isn’t present, so there’s no astigmatism correction listed. Therefore, +1.00 OU means +1.00 diopters of spherical power for each eye, i.e., a hyperopic correction of +1.00 diopters in both eyes. The other options don’t fit because a cylinder value would appear if astigmatism were corrected, pupillary distance is a separate measurement (PD), and “plus lens power measurement” isn’t how prescriptions are described.

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