what is 4th nerve palsy
A Few Facts About 4th Nerve Palsy. A little known or understood disorder, 4th Nerve Palsy is an eye disorder in which the usual symptom is that of double vision.In this particular case, double vision means the image seen through one eye appears to be slightly above the image seen by the other eye. The exact cause of this disorder is not always known.hen this nerve suffers from a disorder, such as palsy, the movement of the eye is affected. The eye's gaze will tend to drift upward and perhaps slightly inward. The upward drift of the eye's gaze is called hypertropia.