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The Berens horizontal prism bar is an orthoptic instrument used to measure ocular deviations and evaluate binocular vision.
Features and Use
- Type: Ophthalmic prism bar with progressive powers.
- Unit of measurement: prismatic diopter (Δ).
- Orientation: base-in (BI) or base-out (BE), depending on the direction of presentation.
- Use: near and distance examination.
- Applications: measurement of phorias, tropias, and horizontal fusion reserves.
Main Indications
1. Strabismus: quantification of horizontal deviations, particularly esotropia and exotropia.
2. Heterophoria: measurement of latent deviations.
3. Fusion vergences: assessment of convergence and divergence.
4. Orthoptic evaluation: performing the prism cover test.
Technical specifications of the 16-prism model
Specification Description
Number of prisms 16
Powers 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45 Δ
Material Transparent optical polymer
Accessory Protective case
Users Orthoptists, ophthalmologists
New equipment
1
Year of mfg.
2026
Available
Checked by OPHTAZON
3
Year of mfg.
-
Available
New equipment
3
Year of mfg.
2026
Available
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