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Visual Fields OTM III Part 1: Questions and Answers, Exams of Nursing

A series of questions and answers related to visual fields, covering topics such as confrontational visual field, perimetry testing, goldman visual field, visual pathway, and scotomas. It offers a basic understanding of visual field assessment and its relevance in ophthalmology.

Typology: Exams

2023/2024

Available from 10/30/2024

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Visual Fields OTM III Part 1 Questions And Answers A+
What is a confrontational Visual field? - ANS-✔✔-screening
-done on EVERY patient including emergencies
What is perimetry testing? - ANS-✔✔-allows you to quantify and qualify diagnosis (severity)
What is a Goldman visual field used for? - ANS-✔✔-low vision
What is the correct order for the visual pathway? - ANS-✔✔-retina
-optic nerve
-optic chiasm
-optic tract
-LGN
-optic radiations
-V1
The macula fibers run ______________ - ANS-✔✔-central
In the chiasm what happens to the nasal and temporal fibers? - ANS-✔✔-nasal: decussate
-temporal: stay temporal (not crossing)
After the chiasm where does the right VF (OD and OS) go? - ANS-✔✔-left hemisphere
After the chiasm where does the left VF (OD and OS) go? - ANS-✔✔-right hemisphere
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Visual Fields OTM III Part 1 Questions And Answers A+

What is a confrontational Visual field? - ANS-✔✔-screening

-done on EVERY patient including emergencies

What is perimetry testing? - ANS-✔✔-allows you to quantify and qualify diagnosis (severity)

What is a Goldman visual field used for? - ANS-✔✔-low vision

What is the correct order for the visual pathway? - ANS-✔✔-retina

-optic nerve

-optic chiasm

-optic tract

-LGN

-optic radiations

-V

The macula fibers run ______________ - ANS-✔✔-central

In the chiasm what happens to the nasal and temporal fibers? - ANS-✔✔-nasal: decussate

-temporal: stay temporal (not crossing)

After the chiasm where does the right VF (OD and OS) go? - ANS-✔✔-left hemisphere

After the chiasm where does the left VF (OD and OS) go? - ANS-✔✔-right hemisphere

What is V1 responsible for? - ANS-✔✔-cortical magnification

What happens in the binocular area of the VF if there is damage to one eye? - ANS-✔✔-the other eye will compensate

-patients with glaucoma will only be symptomatic in the periphery because that is where binocular vision overlap ends

Once you get past the chiasm all visual field defects will present themselves _______________ - ANS-✔ ✔-bilaterally

What does incongruous mean? Congruous? - ANS-✔✔-incongruous: asymmetrical

-congruous: symmetrical

What are the four reasons why we need to assess visual fields? - ANS-✔✔-to assess if a patients visual field meets the legal driving standards

-to screen for injury/disease/compressive lesions in the visual pathway

-monitoring for disease progression

-monitoring for disease stability (stroke patients are usually stable after initial loss so have to make sure loss doesnt progress)

What are the two diseases in particular we can monitor for progression through the visual field? - ANS- ✔✔-retinitis pigmentosa

-glaucoma

What boundary has the largest degree of VF? Smallest? - ANS-✔✔-largest: temporal

-smallest: nasal (probably having to do with the nose)

What does automated visual field testing assess? - ANS-✔✔-how bright a stimulus needs to be seen against the background

-the more sensitive (the retinal location) the dimmer the light is that can be perceived against the background

What happens in kinetic perimetry? - ANS-✔✔-stimulus is moved from non-seeing to seeing along a set meridian

How many degrees is the separation in kinetic perimetry from all directions? - ANS-✔✔-separation is 15 degrees

How are areas joined in kinetic perimetry - ANS-✔✔-areas of equal sensitivity joined by a line (Isopter)

-each corresponds to target size and intensity used

-target size and brightness static til isopter located

What type of visual field is done in the low vision service at NSU? - ANS-✔✔-Goldmann