static perimetry

The static check is to determine the light sensitivity threshold of each point on a meridian, and connect the curve to get the depth concept of the visual field defect. Static inspection refers to checking the spot on the perimeter of the suspected or detected defect on the meridian, every 2 ° ~ 10 °, to adjust the spot on the perimeter to a weak brightness that is invisible to normal people. , display for one second, if the eye is not visible, then after 3 seconds, use a strong level of brightness display, and gradually increase until the eye to be seen, record the light intensity used at this time, and then use Coordinate records or connect points to a curve. Basic Information Specialist Category: Ophthalmic Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: Inappropriate people: other diseases, such as cardiovascular. Normal value In the early stage of glaucoma, the central visual field examination showed an expansion of the physiological blind spot, and the physiological blind spot was exposed, gradually progressing to a flaming blind spot and a bow-shaped dark spot. If the upper and lower arcuate dark points are connected to each other, a circular dark spot can be formed. Early wedge-shaped defects appear in the peripheral visual field, gradually narrowing the nasal field of view, narrowing the centripetality, and finally leading to the tubular visual field, or even completely disappearing. Therefore, the examination of the visual field, fundus, intraocular pressure, anterior chamber angle, etc. can be used to understand the progress of glaucoma disease. Therapeutic effect and prognosis. Clinical significance Abnormal results Static visual field examination has certain advantages over dynamic examination. For some retinal degeneration, macular degeneration, optic neuritis, etc., it is possible to detect changes in visual field that cannot be detected by general methods. Need to check for glaucoma or myopia patients. Precautions Taboo before the test: emotionally nervous. Inspection requirements: the fitter's cooperation with the subject. Inspection process Static inspection refers to checking the spot on the perimeter of the suspected or detected defect on the meridian, every 2 ° ~ 10 °, to adjust the spot on the perimeter to a weak brightness that is invisible to normal people. , display for one second, if the eye is not visible, then after 3 seconds, use a strong level of brightness display, and gradually increase until the eye to be seen, record the light intensity used at this time, and then use Coordinate records or connect points to a curve. Not suitable for the crowd Inappropriate people: those with other diseases, such as cardiovascular disease.