masking

The occlusion method is the easiest and most convenient method for strabismus examination. It can determine not only strabismus but also which strabismus. Let the patient sit and look at the front lighter's flashlight source. At this time, the examinee's pupils have a light spot in each of the pupil areas. The presence or absence of strabismus and strabismus is determined based on the position of the spot and the direction in which the eyeball moves after the cover. Basic Information Specialist Category: Ophthalmic Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: Inappropriate crowd: The patient's eye movement is seriously impaired and can't even exercise. Normal value Covering the patient's right eye, the left eye still looks at the target in front without movement. Open the patient's right eye. If the left eye is still not moving, the right eye appears to move. According to the direction of the movement, the patient can be judged to be implicit or oblique. If the right eye moves from the inside to the outside, it means suffering from implicit strabismus; from the outside to the inside, it means suffering from external oblique. Clinical significance Abnormal result If the non-covered eye moves from the outside to the inside, it indicates that the patient has external strabismus; movement from the inside to the outside indicates that the patient has strabismus; if there is vertical movement, it indicates vertical strabismus, that is, upper strabismus or lower strabismus. Patients with strabismus or indirect strabismus need to be examined. Precautions Taboo before inspection: Keep sitting distance. Requirements for inspection: Cover the eye with a blindfold. Inspection process Let the patient sit and look at the front lighter's flashlight source. At this time, the examinee's pupils have a light spot in each of the pupil areas. The presence or absence of strabismus and strabismus is determined based on the position of the spot and the direction in which the eyeball moves after the cover. Not suitable for the crowd Inappropriate crowd: The patient's eye movements are severely impaired and may not even move.