![]() Confirm that the appropriately sized target was used for the test.This point is important because follow-up examinations should be of the same test type in order to properly identify changes. Identify which testing algorithm (24-2, 30-2, etc) is being used.Confirm patient's name, ID number, and date of examination.We usually use this test in our practices to assess visual field loss in our glaucoma patients. Our discussion focuses on the salient points for proper interpretation of the 24-2 Swedish Interactive Thresholding Algorithm (SITA) full-threshold Humphrey visual field (HVF) (Carl Zeiss Meditec Inc., Dublin, CA). A full discussion of the differences between static and kinetic perimetry is beyond the scope of this column, however, those interested are encouraged to explore the suggested reading at the end of this article. Static perimetry, of which there are several versions, uses a computer algorithm to present targets at fixed locations to delineate scotomas in a more expedited fashion. Kinetic perimetry involves the use of moving targets from nonseeing to seeing areas to delineate spots of decreased or absent vision. Perimetry has long been an important tool for identifying visual field defects and guiding glaucoma patients' treatment. Question submitted by Andrew Hendrick, MD, PGY-2 Ophthalmology Resident at the University of Colorado in Aurora. ![]()
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