color chart test

The fake color table is usually called the color blind checklist. There are Shiyuan Ren and Stilling fake color table in foreign countries. There are Yu Ziping and Jia Yongyuan color blind check charts in China. A picture consisting of dots with the same brightness and darkness (the degree of shade) and different colors, each picture is composed of dots of one color to form numbers, letters, patterns or curves, and dots of other colors are used to form the bottom. . Basic Information Specialist Category: Ophthalmic Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: Inappropriate people: patients with inflammation in the eyes. Normal value A normal person recognizes a figure by color rather than brightness, so that a correct judgment can be made, and an abnormal color vision is recognized by brightness instead of color, so that a correct judgment cannot be made. Clinical significance Abnormal results have low ability to recognize colors, medically known as color weakness; color is completely unrecognizable, and medically known as color blindness. Need to check the crowd color is not normal. Precautions Forbidden before examination: use eye drops. Requirements for inspection: cooperate with a doctor. Inspection process A picture consisting of dots with the same brightness and darkness (the degree of shade) and different colors, each picture is composed of dots of one color to form numbers, letters, patterns or curves, and dots of other colors are used to form the bottom. . A normal person recognizes a figure by color rather than brightness, so that a correct judgment can be made, and an abnormal color vision is recognized by brightness instead of color, so that a correct judgment cannot be made. The other picture is composed of dots with the same color and different brightness, which can not be recognized by normal people, and can be recognized by people with abnormal color vision. Not suitable for the crowd Inappropriate crowd: Patients with inflammation in the eyes.