Snellen Chart Vision Assessment

Sarah from RegisteredNurseRN.com demonstrates how to assess visual acuity using a Snellen chart. The video covers the setup of the test, including patient instructions and the use of glasses if needed. It provides a step-by-step guide on conducting the test by covering each eye and reading the chart. The video explains how to interpret the results, such as determining 20-20 or 20-30 vision. Finally, it concludes with a thank you and a prompt to subscribe for more videos.

What cranial nerve is assessed when using a Snellen chart?

• Cranial nerve 4

• Cranial nerve 2

• Cranial nerve 1

• Cranial nerve 3

How far should the patient stand from the Snellen chart during the test?

• 10 feet

• 20 feet

• 15 feet

• 25 feet

What should a patient do if they normally wear glasses during the Snellen chart test?

• Remove them

• Wear them

• Place them on the chart

• Hold them in hand

In what order should the eyes be tested using the Snellen chart?

• Both eyes, left eye, right eye

• Both eyes, right eye, left eye

• Left eye, right eye, both eyes

• Right eye, left eye, both eyes

What does it mean if a person has 20-20 vision?

• They can see at 10 feet what a person with normal vision sees at 20 feet

• They can see at 30 feet what a person with normal vision sees at 20 feet

• They can see at 20 feet what a person with normal vision sees at 20 feet

• They can see at 20 feet what a person with normal vision sees at 30 feet

If a person reads line six with their left eye, what is their vision measurement?

• 20-40

• 20-30

• 20-25

• 20-20

What does a 20-30 vision in one eye indicate?

• The eye sees at 20 feet what a normal eye sees at 20 feet

• The eye sees at 10 feet what a normal eye sees at 30 feet

• The eye sees at 30 feet what a normal eye sees at 20 feet

• The eye sees at 20 feet what a normal eye sees at 30 feet