This patient has dysthyroid eye disease. The clip shows the patient attempting to look up. There is restricted left elevation and left proptosis. There is mechanical restriction of eye movement with overaction of contralateral synergists. There are no further muscle sequelae, as the deviation is mechanical in origin.
Recovering right III nerve palsy. Minimal RE ptosis. Patient is looking up and to the right. Cover-uncover of RE, no movement of the LE. Cover-uncover of the LE, upward movement of the RE; right superior rectus underaction. Movement of RE becomes greater, more easily observed with alternating cov...
This patient has a fully accommodative left to alternating esotropia. Without the hyperopic prescription in place, the LE moves outwards to take up fixation on cover-uncover indicating a 20Δ left esotropia. When the cover is removed from the LE the RE has moved inwards and there is now a right es...
This patient has a residual intermittent right distance exotropia (simulated), following right lateral rectus recession and medial rectus resection. When the LE is covered the RE is seen to move inwards indicating a right exotropia of approximately 12Δ. This can also be seen when the cover is mov...
