Description
Plastic
Beads
Nylon
String
Beads
wood
Therapeutic
heavier cords
Product description
- The Red-Green Flipper is a two-sided anaglyph filter (red on one face, green on the other) designed to strengthen anti-suppression, balance input from both eyes, and build binocular stamina. Used over standardized RG reading bars, bar readers, tranaglyphs, or printed anaglyph targets, it lets you flip filters quickly while the patient reads or fixates—provoking alternation, revealing suppression, and encouraging stable, comfortable single vision that integrates easily into clinic and supervised home VT.
- What it does: Trains anti-suppression, binocular awareness, and visual endurance by alternating red/green filters
- How to use (quick start): Seat at ~40 cm, present an RG target → flip red⇄green every few words/lines or on a metronome beat → coach single & clear
- Feedback cues: Look for luster (color blend) and immediate awareness if one color/eye “drops out” (suppression)
- Progressions: Start with large, high-contrast text → increase density/reading speed → add tracking (line guides), timing, or cognitive load
- Great pairings: RG Bar Reader/Reading Bar, Variable Tranaglyph, Brock string (with RG beads/cards), fixation sticks
- Who it suits: Children to adults for clinic blocks and home programs under clinician guidance
- Best practices: Keep lighting/working distance consistent; log time, errors, and symptoms (effort, blur, eye strain); stop if diplopia persists
- Build & care: Lightweight flipper handle for smooth, repeatable flips; clean filters with lens-safe solution; store in a sleeve to avoid scratches
| Topic | Details |
| Category | Vision Therapy Tool |
| Purpose | The Red & Green Flipper is used in vision therapy for anti-suppression training, binocular vision therapy, and dichoptic visual stimulation. By alternately presenting red and green filters, it helps encourage both eyes to work together and improves binocular visual integration. |
| Target users | Used by optometrists, ophthalmologists, orthoptists, and vision therapists for patients with amblyopia, suppression, strabismus, binocular vision dysfunction, or visual coordination problems. Suitable for children and adults undergoing binocular vision therapy or home-based therapy exercises. |
| Optotypes / Symbols | The flipper itself does not contain optotypes or visual symbols. It is used with external therapy materials such as tranaglyph charts, vectographs, reading bars, or red/green therapy cards, which present different images to each eye. |
| Scaling / Spacing | Scaling and spacing are determined by the visual therapy targets used with the flipper. These targets must be designed for red/green dichoptic viewing, ensuring each eye sees separate components of the visual stimulus. |
| Range of Acuity / Line Sizes | The flipper does not define visual acuity levels. The acuity range depends on the chart or reading material used during therapy, which should match the patient’s corrected visual acuity for effective binocular training. |
| Testing Distance | Typically used at near working distance (approximately 40 cm / 16 inches) when paired with reading material, tranaglyphs, or therapy charts. The exact distance may vary depending on the therapy protocol. |
| Physical Size & Dimensions | The device is a compact handheld flipper with colored filter lenses, usually with lens dimensions around 35–40 mm and an ergonomic handle designed for comfortable flipping during therapy sessions. |
| Mounting / Design | The flipper is handheld, allowing quick switching between red and green filter orientations. The user simply flips the device to alternate which eye views through each colored filter. |
| Features | The flipper contains red and green optical filters arranged in opposite orientation on each side, enabling alternating dichoptic viewing during therapy exercises. It is compatible with vectographs, tranaglyphs, and red/green reading materials used in binocular vision therapy. |
| Included Accessories | Typically supplied as one red/green flipper unit. Some suppliers may provide protective storage pouch or therapy instructions, while others may offer bulk packs for clinical use. |
| Usability | The device is lightweight and easy to flip, allowing therapists or patients to alternate filters quickly during therapy exercises. It can be used for reading tasks, binocular coordination exercises, and anti-suppression training. |
| Marker of Quality | High-quality red/green flippers feature durable frames, accurately colored filters with proper optical clarity, smooth flipping mechanism, and compatibility with standard red/green therapy materials. Reliable manufacturers ensure long-lasting performance in clinical and therapy settings. |
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