EH-1 Hess Screen
Hess screen for ocular motility testing
A Hess screen for coordimetry of the extraocular muscles, used mainly in paralytic strabismus and in muscle palsies and pareses. The examiner lights the 25 green LED points of the parabolic grid one by one with a remote control while the patient indicates where each appears.
Serviced by manufacturer-trained engineers. New devices include two years of free service – only the engineer's travel is charged.
Highlights
- 25 green LED test points at the intersections of the parabolic Hess grid
- Points switched on individually by remote control, in random order
- Supplied with two pairs of red-green filter glasses, a light-point projector and a mains adapter
- Patient seated 1 m from the screen; a chin rest is recommended for accuracy
Technical specifications
- Test points
- 25 green LEDs
- Working distance
- 1 m
- Dimensions (W × D × H)
- 854 × 854 × 20 mm
- Weight
- 5 kg
- Packaging
- 1 box, 102 × 92 × 9 cm, 8.8 kg gross
- Medical device risk class
- Class I
More in this category
