Blog

A toric lens is used to correct: 

Although the trifocal power can be varied according to need,  it is usually _____________ percent of the Add power.

The whiskers of a mouse are important for:

As a rule, particularly in higher power lenses, the multifocal should be turned around to measure the Add power in the lensometer.  This is because of the difference between front vertex power and back vertex power. 

A mouse is presents to your clinic for evaluation.  Based on the clinical signs, the doctor suspects the symptoms may be related to pinworms.  You are asked to perform a diagnostic test to assess if pinworms are present and in what quantities.   Based on your assigned reading material, which diagnostic test will you perform? 

All of the following are characteristics of a lens to correct simple myopia except:

How many optical centers does a  Single Vision lens of +2.00 -1.00 x180 power have?

Opioids have unique effects on blood pressure in different species.  Match each species to the expected result on blood pressure secondary to opioid administration.  Choices may be used once, multiple times, or not at all. 

In rats, the jugular vein can be located by using which two landmarks?

Mammary tumors are one of the most common neoplasms in hamsters and gerbils.