斜视、隐斜视（Strabismus）.docVIP

斜视、隐斜视（Strabismus） Strabismus Heterophoria is a potential ocular misalignment, but can maintain the binocular fusion in the reflex control, to force the two eye is not keep showing deviation, once the brain fusion blocked (such as one eye covered) or lose control (such as the excessive use of visual or mental fatigue) that eye misalignment will be displayed. Therefore, between strabismus and significant strabismus is only a degree rather than a qualitative distinction. Heterophoric range for a long time, the work and the use of binocular vision application instrument or flying, are affected. This is due to the work of the excessive use of eyesight, a high degree of concentration, often easily lead to eye muscle fatigue or brain fusion function is out of control, resulting in the destruction of binocular vision, ocular misalignment. Therefore, in the selection of pilots and special forces, the examination of strabismus is one of the important items of inspection. Classification: clinically, it is usually divided according to the direction of the deviation of the eyeball. One eye has to medial deviation trends called esophoria (esophoria); an eye to the lateral deviation trend is called exophoria (exophoria); an eye to the above deviation trend is called hyperphoria (hyperphoria); one is deviation trend is called hypophoria ((hypophoria) the diagnosis, the past do not, now gradually applied) corneal vertical axis tilt toward upper nasal side called the inner cyclophoria (incylophoria); the upper end of the vertical axis tilt the cornea to the temporal trend is called cyclophoria (excyclphoria). Pathogeny Basically the same as obvious strabismus. Are more common most, so it became heterophoria is due to skew to a lesser extent, to maintain the binocular fusion function of the brain is strong, so usually able to maintain eye axis without significant strabismus; non commonality who often appears in paralytic strabismus or early recovery period, mild eye muscle paralysis