Jun 3, 2021 · The pattern deviation plot will do the best job in highlighting field defects that follow glaucomatous patterns. This plot also demonstrates areas of the visual field by raw decibels …

Jan 20, 2025 · Pattern Standard Deviation: This indicates a deviation in the shape of the hill of vision and has a positive sign. A low value indicates a normal shape of the hill of vision, …

Feb 15, 2013 · For patients with a localized visual field defect, the pattern standard deviation (PSD) best quantifies the amount of loss as well any progression of glaucoma in the early stages.

Jun 2, 2023 · The numerical pattern deviation map shows discrepancies within a patient’s visual field by correcting for generalized decreases in visual sensitivity. It is useful to show localized …

Pattern standard deviation (PSD) measures irregularity by summing the absolute value of the difference between the threshold value for each point and the average visual field sensitivity at …

The Pattern Deviation Maps highlight localized loss after fi rst correcting for any overall change in the height of the hill of vision, such as that caused by cataract.

To calculate the pattern deviation probability map, locations within 24 degrees of fixation are ranked according to the deviation in sensitivity compared to the age-matched normal …

As a very, very general guideline, you can look at the density / size of the field defect, the pattern standard deviation, and the mean deviation (MD) to see if it is worsening.

The pattern deviation plot is made to identify deep scotomas (localized defects) in the generalized field defects. Pattern deviation numerical plot (PDNP): PDNP is derived from TDNP.

Pattern standard deviation (PSD) provides information about localized loss. A high PSD indicates a nonuniform sensitivity loss (ie, not due to diffuse depression from cataract or vitreous …