The Spielmann Occluders are for use during the cover test and vision testing. The hand held Spielmann has a normal black occluder at the other end.
When used during Cover Test, the Spielmann provides total form occlusion, yet allows the observer to see the position of the eye behind the occluder. This can be especially useful in assessing the 3 components of dissociated vertical divergence (elevation, excyclotorsion, and abduction).
During vision testing, an opaque occluder can be useful in achieving the best visual acuity from someone with manifest or latent nystagmus.
Available as either a hand-held or clip-on occluder.