Description
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Product description
- The LEA Flicker Wand is a pediatric fixation tool designed to quickly capture and sustain a child’s attention using a gentle, eye-catching flicker. In busy pediatric clinics and screening camps, it helps you direct gaze precisely where you need it—supporting more accurate fixation assessment, cover/alternate-cover testing, retinoscopy cues, and ocular motility (pursuits/saccades) checks. Because it’s simple, non-threatening, and engaging, it’s especially valuable for infants, toddlers, and anxious children who may not respond well to verbal instructions.
- Primary purpose: Attract and hold fixation for more reliable pediatric eye assessments
- Great for: Cover/alternate-cover tests, fixation preference checks, Hirschberg, retinoscopy attention cues, pursuits/saccades
- Why it works: The flicker stimulus improves attention and reduces wandering gaze—boosting test accuracy
- Kid-friendly: Non-scary, quiet, and easy for children to follow compared with lights or complex targets
- Clinic efficiency: Faster cooperation = quicker exams and more consistent results across visits
- How to use: Present at eye level → vary distance/position → cue “look here” while observing alignment/eye movements
- Portable: Lightweight wand format for chairside and outreach screening use
- Care: Wipe clean with approved disinfectant; store safely to protect the flicker mechanism and keep it ready for daily use
| Topic | Details |
| Category | Pediatric Ophthalmology / Visual Field Screening |
| Purpose | The LEA Flicker Wand is designed to screen and estimate peripheral visual field function using a movable LED stimulus. It is particularly useful for detecting visual field defects or peripheral awareness deficits in patients who cannot reliably perform automated perimetry tests. |
| Target Users | Ophthalmologists, optometrists, orthoptists, pediatric vision screening professionals, and clinicians working with children, neurologic patients, rehabilitation cases, or non-cooperative individuals where traditional visual field tests may be difficult to administer. |
| Stimulus Type | The device uses a single LED light stimulus at the tip of the wand. The stimulus may be presented as steady (non-flickering) or flickering light, allowing clinicians to assess patient detection of peripheral visual stimuli. |
| Optotypes / Symbols | The device does not use traditional optotypes (letters or symbols). Instead, it provides a point light stimulus that is moved through different areas of the visual field while the patient maintains central fixation. |
| Scaling / Spacing | There are no chart-style scaling or spacing measurements. Instead, the clinician moves the stimulus across different quadrants of the visual field to assess detection responses. The flexible wand allows controlled positioning of the stimulus during screening. |
| Range of Acuity / Stimulus Levels | The device does not measure visual acuity. Instead, it provides three luminance levels of the LED stimulus, typically around 4 cd/m², 40 cd/m², and 400 cd/m², allowing different stimulus intensities for visual field screening. |
| Testing Distance | The test is typically performed at near working distance, often beginning around 40 cm from the patient’s head, with the stimulus brought into the visual field from different quadrants while the patient maintains fixation on a central target. |
| Dimensions | Total length: approximately 26.5 inches (≈67.3 cm). Flexible wand section: approximately 20 inches (≈50.8 cm), allowing the examiner to move the stimulus behind and around the patient’s head during testing. |
| Mounting / Display Features | The device is handheld and portable. The flexible wand design allows the examiner to move the LED stimulus smoothly across different visual field positions. It can also be used with arc perimeters for more structured visual field evaluation if required. |
| Included Accessories | Typically supplied with the LEA Flicker Wand device and instruction guide/manual describing screening procedures. Additional accessories such as batteries or documentation may vary depending on supplier packaging. |
| Durability / Material | The wand is constructed with a flexible yet durable shaft designed for repeated clinical use. The LED module and wiring are designed to withstand frequent handling in pediatric or clinical screening environments. |
| Usability | The LEA Flicker Wand provides a simple and effective method for rapid visual field screening, especially useful in pediatric clinics, neurological assessments, and outreach screenings where automated perimetry is not practical. |
| Marker of Quality | Developed as part of the LEA Test vision screening system, widely recognized in pediatric ophthalmology. The device provides controlled stimulus brightness levels and ergonomic design for consistent clinical screening. |
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