Exam 5: Keratometry Tonometry and Refractometry

The best correction a patient with astigmatism can obtain without a cylinder is known as

Having a new lens, such as the lens placed in the eye after cataract surgery, is known as

The refraction that a patient likes the most is known as the

The power of a cylinder lens is found how many degrees away from its axis?

On an astigmatic clock, the correcting cylinder is placed how many degrees from the blackest line?

To ensure accuracy, the keratometer must be

The purpose of refractometry is to

What is determined by the rate aqueous enters and exits the eye?

What is the best method to ascertain the objective refraction of a patient?

All of the following are steps performed to ascertain a patient's refraction except

The keratometer measures

An ophthalmometer is also known as a

The condition in which there is a difference in the refractive error of the two eyes is known as

Another name for near-sightedness is

A lens consisting of two cylinders of equal power but of opposite designation, one being plus and the other being minus, and their axes set 90 degrees apart is known as a

What can be determined from a retinoscopy exam?

Ophthalmic assistants are responsible for calibrating the tonometer. True or False?

In the hyperopic eye, distant objects are brought to focus

If a patient's eyesight is very poor and they cannot focus on the target inside the keratometer, what should be done to assist them?

What part of the cornea does the keratometer measure?