Bangerter Occlusion Foils (Sold Individually)

Item #: C20+

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Bangerter Occlusion Foil
(Sold Individually)

A system of graded foils to equalize the spatial contrast of the dominant eye to that of the amblyopic eye. Studies have shown faster improvement when the good eye is occluded in a gradual process while the amblyopic eye is stimulated. Bangerter foils allow occlusion without obvious appearance to other children making compliance easier.

Foils come in equivalent acuities of: 20/20, 20/25, 20/30, 20/50, 20/70, 20/100, 20/200 & 20/300, as well as Light Perception or Total Occlusion 0.0.

Product Details
Product Reviews

Bangerter Occlusion Foils

Bangerter Occlusion Foils are thin, flexible translucent filters designed to reduce visual acuity in a controlled and predictable manner. Available in multiple densities, these foils can be applied directly to spectacle lenses to provide graded visual blur while maintaining light transmission.

Available Densities

Item No.    Approximate Visual Acuity
C2020 (1.0)    ~20/20
C2025 (0.8)    ~20/25
C2030 (0.6)    ~20/30
C2050 (0.4)    ~20/50
C2070 (0.3)    ~20/70
C20100 (0.2)    ~20/100
C20200 (0.1)    ~20/200
C20300 (<0.1)    ~20/300
C20LP (LP)    Light Perception
C90NL (0.0)    Total Occlusion (Beige)

Actual visual acuity achieved may vary depending on the individual, lens material, lighting conditions, and viewing distance.

Product Features

• Thin, flexible self-adhering foil
• Provides graded levels of visual blur
• Easily trimmed to fit most spectacle lenses
• Removable and reusable
• Adheres without adhesives, similar to a window cling
• Foil size approximately 2.5" x 2.5"

Application Instructions

Step 1: Identify the shiny side of the foil.
Step 2: Cut the foil with sharp scissors to the desired size.
Step 3: Lightly moisten the shiny side with warm water.
Step 4: Apply the foil to the inside surface of the spectacle lens.
Step 5: Use a soft, dry cloth to remove excess water and smooth out air bubbles.
Step 6: Allow the foil to dry for approximately one hour before use.

Care & Expected Life

Bangerter Foils are removable and reusable; however, repeated removal and reapplication may reduce adhesion as oils and dust accumulate on the surface.

• Typical life expectancy is 1-2 months when left in place.
• Frequent removal and reapplication may shorten the usable life of the foil.
• Adhesion performance may vary depending on lens coatings and environmental conditions.

Additional Uses

Bangerter Foils are also used in instructional and competitive shooting sports to reduce image clarity in a controlled manner while maintaining light transmission.

Important Notice

The adhesion life of Bangerter Foils may be reduced when applied to lenses that utilize advanced nano-coatings or hydrophobic technologies, including but not limited to Crizal® and similar lens treatments.

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