Farnsworth 15 color scale test

The Farnsworth 15 color standard test is a method for checking color vision abnormalities. This test method is simple and accurate, and can determine the type and degree of color vision abnormalities. For example, the color scales 1 to 15 are all correctly arranged or the order of the adjacent two color patches is reversed to pass; if the arrangement order is chaotic, it is a failure. Basic Information Specialist Category: Ophthalmic Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: Inappropriate people: people with eyes have inflammation. Normal value For example, the color scales 1 to 15 are all correctly arranged or the order of the adjacent two color patches is reversed to pass; if the arrangement order is chaotic, it is a failure. Clinical significance Abnormal results have low ability to recognize colors, medically known as color weakness, and are completely unrecognizable to color, which is medically known as color blindness. Need to check the crowd color is not normal. Precautions Forbidden before examination: use eye drops. Requirements for inspection: Check under normal natural light. Inspection process The inspection instrument is installed in a tweezers with 15 color standards. The inspection method is basically the same as above, and it is required to arrange 15 color standards within 2 minutes. For example, the color scales 1 to 15 are all correctly arranged or the order of the adjacent two color patches is reversed to pass; if the arrangement order is chaotic, it is a failure. The results are plotted to determine if the color vision is abnormal. Not suitable for the crowd Inappropriate crowd: People with inflammation in their eyes.