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JVMBW White Marsden Ball
Marsden Ball White Foam – Vision Therapy Tool for Eye Tracking, Hand-Eye Coordination, Saccadic Training, Occupational Therapy & Sports Vision – Lightweight Hanging Ball for Clinics
₹500.00
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Description
Plastic
Beads
Nylon
String
Beads
wood
Therapeutic
heavier cords
Product description
- Effective Vision Therapy Tool: The Marsden Ball White Foam is widely used in vision therapy to improve eye tracking, saccadic movements, and fixation skills. Ideal for optometrists and therapists, this hanging ball enhances visual coordination, concentration, and tracking accuracy during exercises for children and adults alike
- Enhances Hand-Eye Coordination: Designed to boost eye-hand coordination, this lightweight foam Marsden Ball helps train the brain and eyes to work together. Perfect for rehabilitation, pediatric therapy, and sports vision, it supports cognitive development, visual motor integration, and reaction time through active visual engagement
| Topic | Discription |
| Purpose | The Marsden Ball is a swinging ball with letters/numbers printed on it, designed for visual-motor coordination, pursuit/tracking eye movements, hand-eye coordination, saccades and binocular visual integration. |
| Target users | Children or adults undergoing vision therapy for issues such as amblyopia, strabismus, suppression, poor tracking, poor hand-eye coordination, visual-motor integration difficulties, and possibly post-traumatic brain injury vestibular/ocular-motor deficits. For example the white ball is described as “suitable for patients who have … binocular vision and conditions such as amblyopia, strabismus … everyone can use it, children as well as adults.” |
| Optotypes / Symbols | The ball has letters and numbers printed on its surface (and in some versions shapes). For example: “Soft white ball with all letters of the alphabet and numbers 1 through 9 on the surface.” In the white version: black letters/numbers on white ball. For example: “White Marsden Ball … printed black letters and numbers on a 10 foot cord.” These letters/numbers act as visual targets that the patient calls out or taps as the ball swings, thus combining tracking + hand coordination + visual recognition. |
| Scaling / Spacing | The printed letters/numbers vary in size. For example: In one article the Marsden Ball had “large letters that were 12 mm in size and small letters that were 6 mm.” Because the ball is spherical and swinging, spacing between symbols is somewhat irregular and curved — the therapy focus is more on motion tracking and recognition rather than precise spacing like a static acuity chart. The size of the ball (diameter ~89 mm = 3.5″) gives you an idea of coverage and how much visual angle the letters cover at a given distance. |
| Range of Acuity / Line Sizes | The Marsden Ball itself is not a formal acuity chart (i.e., it does not provide standardized lines of different sizes for measuring acuity). Instead it uses letters/numbers of varying sizes for tracking/recognition. If you interpret that into acuity: 6 mm letters at near might correspond roughly to ~20/40-20/50 depending on distance, lighting etc—but it is not specified as a calibrated acuity tool. So: Use for pursuit/tracking/training rather than formal acuity measurement. |
| Testing Distance | The ball is typically suspended so that the patient can swing and tap it. The article suggests “hung at a height slightly below eye level.” Distance is flexible: It’s more about the arc and motion of the ball rather than fixed testing distance. Some versions come with a cord of 10 ft (≈3 m), or 17 ft for the soft version. For example: “Soft white ball … comes attached to a 17 ft white string. So you will want to ensure you have sufficient space to suspend the ball and allow safe swinging (clear of obstacles). |
| Dimensions | For the White Marsden Ball: one spec says “3.25″” diameter for the improved ball. For the Soft White/Red version: “89 mm (3.5″) diameter; 100 g weight; polyurethane foam material; 17 ft white string; includes adhesive wall hook.” So typical: diameter ~75-90 mm (about 3 to 3.5 inches), weight ~100 g for foam version, cord length varies (10-17ft). Ensure the ball’s size is appropriate for your room and the patient’s reach. |
| Mounting | The ball comes attached to a cord/rope or string which is suspended from ceiling/hook or held by therapist. For example: “Attached to the ceiling or have someone hold the rope in the air so the ball is swinging in the height of the patient’s eyes.” The ball itself is the target; no electronic display. The letters/numbers on the surface serve as visual cues. Some versions include an adhesive wall hook for mounting: “Includes adhesive hook.” |
| Accessories | The soft white version: “Includes adhesive wall hook.” The general ball listing mentions cord length, letters printed. The white version: “Marsden Ball (White) * 1, Rings * 2” (some packaging info) according to the first listing. Extras may be: wall hook, maybe spare rings/cord loops, instruction sheet for therapy. Check whether the version you buy includes mounting hardware or you need to provide your own anchor. |
| Accessories | The product page lists Package: “Yellow Marsden Ball *1, Rings *2” (rings presumably for mounting). For European version: set includes “stickers set to customise the ball with letters – polyurethane soft material with anti-twist string + hook”. So accessories may include mounting rings/hooks, rope/cord, possibly adhesive letter stickers (for customising ball) depending on variant Ensure you have the mounting hardware (hooks/rings), the cord length is sufficient, and any extras (instructions, therapy manual) if required. |
| Durability / Material Qualities | There are versions made of polyurethane foam (soft version) and versions made of hard plastic (hard white version). Good durability: The material should withstand repeated hits/tracking and swinging, maintain shape, letters/numbers printed should remain legible, cord should be strong. For foam version weight ~100 g suggests it is lightweight and safer for younger children. Markers of quality: well‐printed letters, durable cord, reliable mounting, recommended use in therapy literature. The therapy article mentions that improved Marsden Balls now have a “better weight which offers a better swing.” Ensure that the ball’s swing motion is smooth and stable (weight not too light so it flickers unpredictably; not too heavy so risky). |
| Usability | The letters/numbers should be clearly visible on the surface so that the patient can call them out while the ball swings. Mounting should allow the ball to swing at patient eye‐level or slightly below. The cord length should allow motion but be safe for the space. Exercises may include: tracking the ball with eyes, tapping letters, calling out letters as it swings, hand-eye coordination tasks. For example: “Have the individual call out a letter they are about to press on the ball and then touch that same letter to push the ball away.” The ball is suitable for both children and adults according to the listing. |
| Quality | Use in peer‐reviewed therapy protocols (the article highlights Marsden Ball games in vision therapy). Durable and appropriately weighted material (not just a toy, but therapy equipment). Clear specification of diameter, cord length, materials etc. Provided by known vision‐therapy equipment brands with proper product descriptions. Good mounting hardware and safe design for therapy setting. |
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