6 days ago · Cloverleaf visual field. The Humphrey visual field perimeter test is designed so that 4 circled points are checked initially and the testing in each quadrant proceeds outward from these points.

A pattern of visual field defects that reflect malingering or poor visual attention. If a patient ceases to respond or stops paying attention during a Humphrey visual field test, a characteristic pattern of the …

Therefore, if a patient's response deteriorates as the test progresses, for example, because of reduced concentration, the visual field shows a cloverleaf pattern, where the thresholds are low at the four …

Apr 15, 2021 · At first glance, the visual field defects look like dense arcuate scotomas. However, the central points in each quadrant are much lighter than the surrounding points. This is a classic …

The visual field defects may affect one or both eyes. They may include constricted or tunnel visual fields, and hemianopias, among other complaints or visual findings.

Our patient showed a type of learning effect that occurred during the first test (intra-test learning effect) and all artifacts disappeared on the second visual field (inter-test learning effect). The mechanism …

A clover-leaf defect in an eye with non-organic visual field loss was tested with the Humphrey visual perimeter using the Swedish interactive threshold algorithm (SITA) standard 30-2.

Description of clover-leaf visual field defects.

Visual field defects should manifest from a corresponding focal anatomical lesion Be aware of different types of artifacts that can appear on OCT and Visual field results Beware of treating “red disease” …

Jun 15, 2020 · Have you ruled out common artifacts? These include cloverleaf artifacts (suggestive of malingering or a decrease in attention during the test), lid artifacts (may improve with lid taping) and …