Table of Contents
What is useful field of view test?
The useful field of view test (UFOV) thus captures the ability to rapidly detect and localize targets, divide visual attention across central and peripheral locations and detect the relevant targets within a visually cluttered array.
What does UFOV test measure?
The UFOV test measures processing speed related to visual aspects (such as visual acuity and contrast sensitivity) and cognitive abilities (executive functioning, attention, and memory). This test evaluates the skills necessary to perform everyday tasks in an experimental environment (31) (32) (33)(34).
What two tests are used in the clinic area to test visual fields?
The two most basic types of visual field tests are very simple:
- Amsler grid: The Amsler grid is a pattern of straight lines that make perfect squares.
- Confrontation visual field: The term “confrontation” in this test just means that the person giving the test sits facing the patient, about 3 or 4 feet away.
What is a 30-2 visual field test?
30-2: Measures 30 degrees temporally and nasally and tests 76 points. Used for general screening, early glaucoma and neurological conditions.
When do you use a 10-2 visual field?
Key point: Armed with such evidence, one group of researchers recommends 10-2 VF testing always be considered if: there are any depressed points in the central 12 degrees less than 0.5% on 24-2 or 30-2 VF testing; the paracentral defect is greatly depressed relative to the mean deviation (MD) on 24-2; or there are any …
What does 20 70 mean when performing a vision test?
The ratio measurement of vision describes visual acuity, or the sharpness of vision, at 20 feet from an object. For example, having 20/70 vision means that you must be at 20 feet to see what a person with normal vision can see at 70 feet.
What is a 30 2 visual field test?
What is a 120 point visual field test?
Esterman visual field perimetry is a binocular testing method which is also available on the HFA. The test consists of 120 white test points shown with equal, non-adjustable suprathreshold light intensity of 10 dB and examines more than 130° of the field.
What is a 24-2 visual field?
The visual field (VF) pattern most widely used to detect glaucomatous damage, the 24-2 test pattern, does not adequately test the macular region, as the 6° grid of the 24-2 pattern has only four points within ± 8°.
What is a 60 4 visual field test?
With this modified HVF 60–4 referred to as (collage) one can measure the effect of aging on both the temporal retina extending from 30 to 60 degrees but also the peripheral nasal retina extending from 50 to 80 degrees [18].