eye movement test

Eye movement examination Eye movement is a parallel coordinated movement of 12 extraocular muscles under the control of 3 (III, IV, VI) cranial nerves. Abnormal eye movements can generally be compared with the normal range of motion by the movement of the monocular and the binoculars, and whether the movement of the common strabismus is relatively hyperactive or insufficient or the dyskinesia of paralytic strabismus. The patient's head position is straight and only the eyeball follows the target. The examiner holds the light-collecting tube about half a meter in front of the patient. In addition to observing whether the eyeball reaches the normal range when moving to the various positions, it is also necessary to observe whether the position of the point light source at the corneal reflective point is Keep in the center of the pupil. Basic Information Specialist Category: Ophthalmic Examination Category: Physical Examination Applicable gender: whether men and women apply fasting: not fasting Tips: Before the check-up taboo: avoid touching and messing with the potion. Normal value The rotation of the eyeball along the X-axis and the Z-axis is free to move, and the rotation along the Y-axis is involuntary movement. During the examination, the patient's eyes can be guided by the fingers from the original eye position up, down, left, right, above the iliac crest, below the ankle, above the nose, under the nose to check whether the eye movement is normal. Clinical significance Abnormal result The ocular dyskinesia of paralytic strabismus occurs not only in monocular motion, but also in the imbalance of binocular movement. Need to check the crowd of people with eye movement disorders. Precautions Forbidden before examination: Drop eye drops. Requirements for inspection: cooperate with a doctor. Inspection process The patient's head position is straight and only the eyeball follows the target. The examiner holds the light-collecting tube about half a meter in front of the patient. In addition to observing whether the eyeball reaches the normal range when moving to the various positions, it is also necessary to observe whether the position of the point light source at the corneal reflective point is Keep in the center of the pupil. For those who can cooperate, the occlusion method can be used to know whether each gaze eye position is kept in a positive position or the squint degree is consistent. Not suitable for the crowd Inappropriate people: those with healthy eyes.