Visual acuity examination

Question 1

_____ _____ refers to the ability to discern fine visual detail

Answer 1

Visual acuity

Question 2

A measurement of visual acuity by testing the ability to read characters at a standard distance on a special target called the Snellen chart refers to

Answer 2

Snellen acuity testing

Question 3

Patients are placed at a specified distance to read the Snellen chart, what is the general distance?

Answer 3

20 feet

Question 4

Why is the viewing distance of 20 feet used when testing vision?

Answer 4

It approximates optical infinity

Question 5

20/20 vision, what do the top and bottom numbers represent?

Answer 5

The top represents the distance in feet at which the test performed.
The bottom corresponds to the distance at which the letters could be seen by a person with “normal” visual acuity.

Question 6

The ____ acuity test is used to confirm whether a refractive error is the cause of below normal visual acuity

Answer 6

Pinhole

Question 7

The handheld device that completely covers one eye and allows the other to view a chart through a tiny central opening is called a

Answer 7

Pinhole Occluder

Question 8

The measurement of the ability to see clearly at a normal reading distance is called

Answer 8

Near Visual Acuity

Question 9

What are the different notation systems seen on near vision cards?

Answer 9

Distance equivalent, Jaeger notation, point system, Snellen M unit

Question 10

What are some common procedures following acuity testing?

Answer 10

Lensometry, Refractometry, Keratometry/corneal topography, color vision testing, glare testing/contrast sensitivity testing