perimetry

Static perimetry tests different locations throughout the field one at a time.

In perimetry, the observer's eye is considered to be at the centre of an imaginary sphere.

The simplest form of perimetry uses a white tangent screen.

Regular perimetry tests can be used to see if treatment for glaucoma is preventing further vision loss.

However, now automated perimetry is more commonly used.

Threshold static perimetry is generally done using automated equipment.

Standard automated perimetry determines how dim of light (the threshold) can be seen at various points in an individual eye's visual field.

This article is about the perimetry concept.

Perimeter, a medical diagnostic device for visual field testing (perimetry)

In this way, kinetic perimetry is useful for mapping visual field sensitivity boundaries.

In an alternative manual perimetry test, your health professional moves a light target and notes your visual field on paper.

The visual field is measured by perimetry.

These data would not be as reliable as data gathered using some other Perimetry technique.

Automated perimetry exam: today this method is commonly used for early detection of blind spots.

Movements or light flashes during perimetry testing.

Regular corrected visual acuity and perimetry checks are advised for follow up of affected individuals.

It is a type of perimetry.

In humans, confrontational testing and other forms of perimetry are used to detect and measure visual field loss.

The use of a white background and lights of incremental brightness is called "white-on-white" perimetry.

However, one patient had significant improvement in visual function on microperimetry and on dark-adapted perimetry.

Automated perimetry: You sit in front of a concave dome and stare at a central target within the dome.

Visual field testing by automated (Humphrey) perimetry is recommended as other methods of testing may be less accurate.

Hyperacuity perimetry is used in clinical trials evaluating therapies for retinal degenerative changes.

More thorough visual field testing that uses perimetry and tangent screens can take more than 45 minutes when both eyes are tested.

This type of perimetry is the most commonly used in clinical practice, and in research trials where loss of visual field must be measured.