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JVRGBRL Red Green Bar Large

JVRGBRL Red Green Bar Large

The Red/Green Reading Bar set is used for anti-suppression training while your patient reads or looks at a picture. These sheets are to be held 1 inch above the page or image when training.

₹500.00

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SKU: JVBS510-1-1-1-1-1-3-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-32-1-1-1-1

Description

Plastic

Beads

Nylon

String

Beads

wood

Therapeutic

heavier cords

Product description

  • Vision Therapy Tool for Eye Exercises: JUTRON VISION Red and Green Reading Bar with Z Axis Chart is ideal for vision therapy and eye exercises. It helps improve eye movement, focus flexibility, and visual skills during near and distance testing. Perfect for optometrists, therapists, and home vision training
  • Near and Distance Accommodation Testing: The Z Axis Accommodative Rock Chart trains the eyes to shift focus quickly between near and distance objects. This tool supports accommodative facility testing and helps manage eye strain, convergence insufficiency, and focusing disorders in children and adults

TopicDiscription
Purpose / Target UsersPurpose: The bar is designed for anti-suppression training (i.e., encouraging use of both eyes when one may be suppressed) while the patient reads or looks at a picture.Target users: Patients with binocular vision disorders (for example amblyopia, strabismus, suppression of one eye), under vision therapy/orthoptic supervision. Also used in “vision therapy” settings rather than standard screening
Optotypes / SymbolsThe reading bar itself is not a chart of optotypes (letters, numbers) but rather a filter/bar overlay tool: the patient reads a text or looks at a picture, and the bar presumably segments or filters that page (via red/green stripes) so that one eye sees one set of targets, the other eye sees another (via red/green channel separation).Therefore the actual optotypes/symbols (letters, words, pictures) are those on the underlying page/chart that you pair the bar with, and not inherent to the bar itself.
Optotypes / SymbolsUses conventional optotypes (letters / characters) on the near chart, similar to standard near vision charts.
The publicly available listing does not specifically enumerate the font, symbol set.
Scaling / SpacingThis information is largely not specified in the product description of the bar.Another listing indicates “Large measures 8 in × 10 in” for the “Large & Small set”.
Because the bar is simply overlaid on text/images, spacing of the text/pictures itself will determine the effective spacing; the bar needs to be large enough to cover the relevant width and height of the reading material.
If you require specific line-size spacing for acuity levels (e.g., 20/40 vs 20/100), you would need to refer to the underlying reading material/chart rather than the bar itself. One guide document suggests for a “red/green bar reader” used with rock cards: “Traditionally this is a 20/40 size print… Landolt C’s 20/50 and 20/40… Numbers 20/50 and 20/40… Level 3 Words 20/40 and 20/30.”
Range of Acuity / Line SizesThe bar tool does not itself define a full acuity chart or line sizes; it’s a tool used with visual materials.
But some related documentation provides approximate reference: The facility test set guide mentions that when using the red/green bar reader over a card, print sizes correspond to 20/40, 20/50 levels.
Therefore, using this bar one might train around near-acuity levels (for example ~20/30 to ~20/50) depending on the chart and patient.
If you want a 20/200 or 20/20 range, you’d need appropriate underlying text/fonts sized accordingly — the bar alone doesn’t define it.
Testing DistanceThe description states: “These sheets are to be held 1 inch above the page or image when training.”
jThis suggests near distance reading (i.e., the reading bar is held just above the text/picture).
A typical near reading training distance might be ~40 cm (16 in) or similar for reading tasks in vision therapy, though this specific product description doesn’t explicitly give a full distance other than “held 1 inch above the page”.
If used binocularly reading a standard near-chart or text, you would likely use the patient’s usual near reading distance under correction.
If you intend distance usage (far chart) you’d need to verify if the bar and underlying chart are sized appropriately for that distance.
Physical Size & DimensionsOne product listing: “Large measures 19.5 × 25 cm.”
Another listing: The set (“Large and Small”) includes large of 8 in × 10 in (~20.3 × 25.4 cm) and small of 6.8 in × 4.5 in (~17.3 × 11.4 cm).
So you can assume the large size is in the region of ~20 × 25 cm (≈8 × 10 in).
Thickness, weight, material gauge are not provided in the description.
Mounting / Display FeaturesMounting: This is a handheld or handheld-overlay tool. The user (therapist/patient) holds the bar approximately 1 inch above the page/image.
Display features: Doesn’t include built-in display; it is a transparent overlay (with red/green stripes) or reading bar that functions with another reading sheet or text. The key feature is the coloured filters/stripes that allow selective eye suppression or channeling via red/green separation.
No mention of mounting to wall, standing display, or fixed frame—so the user must hold it manually or possibly rest it on the page.
It may be used in combination with red/green glasses (for anti-suppression) though the description of this product does not always include glasses (but other therapy kits do). For example: “These Red Green Reading sheets … used with many different red/green anaglyph exercises and glasses including our Red/Green Anti-Suppression Goggles.”
Included Accessories / ExtrasThe product description does not list many additional accessories for the bar alone. For example: Jutron Vision listing: “The Red/Green Reading Bar is used … measures 19.5 × 25 cm.” No mention of additional items.
The “set” version (Large and Small) is paired with both large and small bars: “Set includes: A. Large … B. Small …”
For full therapy kits from other manufacturers, accessories might include: red/green glasses, reading sheets, etc — but for this specific product you’ll likely need to pair with reading sheets & goggles separately.
The listing notes that the sheets (when used) can be cleaned with rubbing alcohol using a soft lens cloth. That in effect is a “care accessory” tip
Durability / Material QualitiesMaterial quality: For the reading bar, one listing states: “The sheets can be gently cleaned with rubbing alcohol using a soft lens cloth. Do not use a paper towel since it will scratch the surface.”
This implies the surface is somewhat vulnerable to scratching and likely plastic/acrylic with a transparent finish.
Durability: Not explicitly rated (no mention of “heavy duty”, “rigid vinyl”, etc) for this bar.
Quality clues: One other related product (reading sheets) mention “durable … formed with pressure to prevent delaminating and sharp edges.”
So for this bar you should check: edges smooth (no risk of chipping), transparent plastic with red/green printing, scratch-resistant surface, size sufficient to cover reading area, easy to clean.
The care instruction suggests caution (no paper towel) which is a typical mark of a softer material surface.
UsabilityThe bar is simple to use: overlay on reading text, hold ~1 inch above page.
It allows training of anti-suppression by separating the channels (via red/green) such that each eye receives different input, demanding binocular collaboration.
Ideal for therapy sessions where reading tasks are involved (rather than single letter charts).
However, because the bar alone doesn’t specify reading content, you’ll need to supply appropriate reading material or worksheets compatible with the bar and any required glasses.
Marker of QualityProper colour separation (effective cancellation/anti-suppression) is a key trait — one listing mentions “Updated red/green colours for better visibility … improved cancellation through the desired lens.”
Good size: the large dimension (~20×25 cm) suggests adequate coverage of typical near-reading material.
Cleanability: the ability to use rubbing alcohol and soft cloth indicates hygienic design (important in clinic).
Compatibility: The bar is used in recognized therapy protocols (e.g., red/green bar reading with red/green goggles in vision-therapy session plans) — e.g., in one article: “red/green bar reading with red/green goggles” is listed in a therapy protocol.
Smooth edges, no sharp corners, durable finish.
Set variants (large + small) provide flexibility for children/various reading sizes.
Sizing fits standard therapy workflows (near reading tasks) rather than ad-hoc novelty.

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