If the lenses are dirty on a refractor/phoropter, they should be cleaned with a

Each of the following disorders can cause a change in pupillary size except:

What is the spherical equivalent of +4.25-1.50×090?

Which laboratory finding may be associated with metastatic bone cancer in the left leg?

A patient admitted with Guillain-Barre syndrome is admitted to the ICU. The nurse anticipates that during the acute phase the most important aspect of nursing care inclues:

Which of the following drops would not be used for a cycloplegic refraction?

A patient calls the office complaining of a mid-dilated pupil, severe headache, and vomiting.  Which of the following is the proper action?

The University Bookstore sells 200 football helmets per week. Purchase-order lead time is 2 weeks and the economic-order quantity is 450 units. What is the reorder point? 

Which condition is the cause of neurotoxin made by Clostridium botulinum?

Which best describes the phenomenon of diffraction?