Snellen Eye Chart Flashcards
What is the most commonly used measure of visual acuity?
Snellen Eye Chart
When doing an eye exam where should the chart be placed?
A well-lit area and at eye level
How far from the chart should the pt stand?
20 feet
The pt should cover their eye with what?
Opaque Card (notecard)
What should you ask the patient next?
What is the lowest line you can read comfortably and have them read that.
What other thing do you need to ask the patient?
Colors on the chart
At the end of the exam what should the doctor record?
Fraction at the end of the last successful line read
When doing an eye exam what should the doctor always indicate regarding the pt?
If they are wearing glasses/contacts
What is an example of how to record an eye exam?
R eye: 20/30 -1 with glasses
Make sure you do the procedure with?
Both eyes
What is a normal eye exam result?
20/20
If the eye exam is poorer than what you should refer them to an optometrist?
20/30
For patients that are unable to read the largest letter, shorten the distance and include it in what?
First Number (ex. 10/200)
For patients with even less visual acuity, have them do what?
Count Fingers
Distinguish light perception using a penlight
For patients over 40 years of age or those who report increasing difficult reading what should you use?
Jaeger Card