What is a key feature of the 24-2C test pattern?

Includes 10 additional test points commonly affected by glaucoma

Which of the following indicates ‘Likely Progression’ in Guided Progression Analysis (GPA)?

Three or more worsening test points in three consecutive follow-ups

What is the Visual Field Index (VFI) used for?

Assessing the rate of glaucoma progression

What does the ‘Hill of Vision’ represent?

A topographical representation of visual sensitivity

What type of defect is seen in an inferior altitudinal visual field loss?

Loss of vision in the lower half of the field

Which of the following is a key advantage of automated perimetry over manual perimetry?

Provides standardized and quantifiable results

How does uncorrected refractive error affect perimetry results?

It causes a generalized depression of sensitivity

What is the primary purpose of Standard Automated Perimetry (SAP)?

To assess the sensitivity of the peripheral visual field

What is the effect of a small pupil diameter on visual field results?

Decreased mean threshold sensitivity

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Humphrey Visual Field Quiz

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Questions 18

Answers

1
What is a key feature of the 24-2C test pattern?
Eliminates false positives and false negatives
Tests only the central 10° of vision
Is used exclusively for neurological conditions
Includes 10 additional test points commonly affected by glaucoma
2
Which of the following indicates ‘Likely Progression’ in Guided Progression Analysis (GPA)?
Three or more worsening test points in three consecutive follow-ups
A change in overall grayscale appearance
Three or more worsening test points in two consecutive follow-ups
A single significant test point loss
3
What does a nasal step visual field defect suggest?
Glaucoma
Pituitary adenoma
Optic neuritis
Retinal detachment
4
What is the Visual Field Index (VFI) used for?
Measuring central retinal thickness
Detecting cataract severity
Assessing the rate of glaucoma progression
Diagnosing neurological visual defects
5
What does the ‘Hill of Vision’ represent?
A perimetry test strategy
A type of optic nerve damage
A topographical representation of visual sensitivity
A measure of intraocular pressure
6
What type of defect is seen in an inferior altitudinal visual field loss?
Loss of vision in the upper half of the field
A nasal step defect
Loss of vision in the lower half of the field
A small paracentral scotoma
7
Which visual field test is the gold standard for glaucoma diagnosis?
Short-Wavelength Automated Perimetry (SWAP)
Humphrey Field Analyzer (HFA)
Frequency Doubling Technology (FDT) Perimetry
Amsler Grid Test
8
Which type of visual field defect is commonly associated with glaucoma?
Central scotoma
Quadrantanopia
Bitemporal hemianopia
Arcuate defect
9
Which of the following is a key advantage of automated perimetry over manual perimetry?
Requires no patient interaction
Detects only central visual defects
Eliminates the need for pupil dilation
Provides standardized and quantifiable results
10
Which factor can lead to a uniform decrease in threshold sensitivity?
Retinal detachment
High intraocular pressure
Optic neuritis
Cataracts
11
How does uncorrected refractive error affect perimetry results?
It eliminates fixation losses
It increases false-positive rates
It enhances contrast sensitivity
It causes a generalized depression of sensitivity
12
Which is a characteristic sign of glaucomatous visual field loss?
Monocular vision loss
Arcuate scotoma
Central scotoma
Homonymous hemianopia
13
A bitemporal hemianopia is most commonly caused by which condition?
Glaucoma
Pituitary tumor
Age-related macular degeneration
Retinal artery occlusion
14
What is the primary purpose of Standard Automated Perimetry (SAP)?
To assess the sensitivity of the peripheral visual field
To detect retinal detachment
To analyze color vision
To measure intraocular pressure
15
Which perimetry test strategy is the fastest among the Humphrey Field Analyzer options?
SITA Fast
Full Threshold
SITA Faster
SITA Standard
16
Which reliability parameter should be less than 15% to ensure accurate visual field testing?
False positives
False negatives
Mean deviation
Fixation losses
17
Which parameter in the Humphrey Visual Field test identifies localized visual field defects?
Visual Field Index (VFI)
Pattern Deviation Map
Total Deviation Map
Mean Deviation (MD)
18
What is the effect of a small pupil diameter on visual field results?
Decreased mean threshold sensitivity
Higher fixation losses
Increased false-negative responses
No effect on sensitivity

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