Visual Labs & Dx VO (Exam 2)

Question 1

Review Anatomy of the eye

Question 2

Pupil

Answer 2

Big hole and the purpose is to let light into the eye

Question 3

Lens

Answer 3

Helps with accomodation

Question 4

Back of the eye is covered by

Answer 4

The retina

Question 5

Visual Acuity Test

Answer 5

Measures both near and far vision

Snellen Chart (far vision)

Miniature eye chart (near vision)

Question 6

Snellen Chart

Answer 6

Measures far vision

Stand 20 feet from chart

20/50 means patients sees at 20 feet what a healthy eye sees at 50 feet

Question 7

Miniature eye chart

Answer 7

Measures near vision

Question 8

How far do you hold pocket chart away from eyes?

Answer 8

14 inches

Question 9

Who is a candidate for visual acutiy testing?

Answer 9

-Routine screening

-Cataracts

-Retinal detachment

Question 10

Ophthalmoscopy views

Answer 10

-Red reflex
FUNDUS
-Optic disc
-Optic blood vessels
-Macula

Question 11

T/F: Before ophthalmoscopy the room should be darken to dilate pupils?

Answer 11

True, it allows the provided to better see into the eye

Question 12

Who is candidate for Ophthalmoscopy

Answer 12

-Routine physical exam

-Glaucoma (optic disc cupping)

Question 13

Optic Disc Cupping

Answer 13

Cup on the optic disc is small but with glaucoma the cup gets larger

Question 14

Glare Testing

Answer 14

Quantifies vision loss associated with light scatter

Question 15

When is glare testing done?

Answer 15

For patients with cataracts wanting to see if they can drive during the night

Question 16

Slit-lamp test

Answer 16

Magnifies the anterior eye structures with low powered microscope

Question 17

Who is candidate for slit lamp test?

Answer 17

Cataracts

Retinal detachment

Distinguish between open angle and closed angle glaucoma

Question 18

Intraocular Pressure Testing is measured with

Answer 18

Tonometer

Question 19

Tonometer

Answer 19

Device that measure IOP

Covered end of probe touches anesthetized corneal surfaces

Question 20

Intraocular Pressure Testing is done for people who

Answer 20

We are concerned have glaucoma (increase IOP can cause pressure)

Question 21

Normal IOP reading

Answer 21

10-21 mmHg

Question 22

IOP testing is done for all patients

Answer 22

> 40 years old

Question 23

If family history of glaucoma IOP testing is done

Answer 23

Twice per year

Question 24

What is the gold standard tonometer?

Answer 24

Goldmans

Question 25

Tonometer for home use

Answer 25

Tono-pen

Question 26

Gonioscopy

Answer 26

Performed when high IOP is found and determines whether open-angle or closed-angle glaucoma is present

Question 27

Imaging Assessments for the Eye

Answer 27

CT

MRI

Radioisotope scanning

Ultrasonography