eye function test

Eye function tests include visual field and vision. Visual inspection. Taken together, all tests have important implications for eye function testing. Hang the eye chart on a wall with fluorescent lighting or natural light. The eye chart is 5m away from the person being inspected. The line 10th line on the table should be roughly equal to the height of the eye to be inspected. For standard distance, a plane mirror can be placed 2.5m opposite the eye chart. The patient sits under the eye chart and observes it from inside the mirror. Basic Information Specialist Category: Ophthalmic Examination Category: Physical Examination Applicable gender: whether men and women apply fasting: not fasting Tips: Inappropriate people: glaucoma patients. Normal value During the examination, if the subject can only recognize the largest "0.1" line E word notch direction on the watch, the visual acuity is "0.1"; if the "0.2" line E word notch direction can be recognized, the record is "0.2". ;And so on. Those who can recognize the "1.0" line or less are normal vision. Clinical significance Abnormal result If the index is still unrecognizable in the nearest place, check the manual in front of the eye and record the farthest distance manually in front of the eye. If it cannot be discerned manually, it should be illuminated by the light in front of the eyes to check whether there is light in the eye, such as no light. Record visual acuity of 0 or no light perception. People who need to be examined for people with abnormal eyesight. Precautions Taboo before inspection: The light is too strong. Requirements for inspection: alternating left and right eyes. Inspection process International eye chart check: hang the eye chart on the wall with fluorescent lighting or natural light. The eye chart is 5m away from the person being inspected. The line 10th line on the table should be roughly equal to the height of the eye to be inspected. When the indoor distance is not within the standard distance, a plane mirror can be placed 2.5m opposite the eye chart. The patient sits under the eye chart and observes from the inside of the mirror. Check both eyes separately, cover one eye (do not oppress the eye), first check the right eye and then check the left eye, such as wearing a mirror, first check the naked eye vision, and then check the wearing vision. 嘱 The examinee discriminates the direction of the notch of the optotype, and the order of the visual marker is 0.1, until the patient cannot discern it, and records the visual result of the lowermost line. Not suitable for the crowd Inappropriate people: glaucoma patients.