Cong_Nystagmus 2009.pdf - The Private Eye Clinic
Cong_Nystagmus 2009.pdf - The Private Eye Clinic
Cong_Nystagmus 2009.pdf - The Private Eye Clinic
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<strong>Clinic</strong>al Features<br />
CN<br />
1. L beat in L gaze / R beat in<br />
R gaze (either side of null<br />
zone)<br />
2. Eccentric null<br />
3. Convergence null (better<br />
reading VA)<br />
4. Latent component (can be<br />
pseudo-latent)<br />
5. Usu. horizontal, can be<br />
torsionalor vertical or all<br />
LMLN<br />
1. <strong>Nystagmus</strong> on lateral<br />
gaze (moving away<br />
from adduction null)<br />
2. Fast beat to fixing eye<br />
3. Adduction null – can<br />
cause face turn or head<br />
tilt<br />
4. Latent component<br />
5. Can be horizontal or<br />
torsional or both<br />
KOWAL MEACO 2009<br />
15
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