Description
What’s Included
- Welch Allyn VS100 Spot Vision Screener
- Carrying case
- Power cable
- 90-day Digital Eye Center warranty
Condition & Warranty
Used. This VS100 has been tested, cleaned and confirmed in working order before shipment; it shows some normal signs of use, visible in the product photos. Covered by a 90-day warranty on parts and workmanship.
Spot Vision Screener — Used Welch Allyn VS100 Handheld Photoscreener
The Welch Allyn VS100 Spot Vision Screener is a handheld, battery-powered photoscreener that checks both eyes at the same time from a distance of about one meter. Instead of asking the patient to read a chart, the spot vision screener uses an optical reflex measurement while a pattern of lights and sounds holds the patient’s attention, so screening works with infants, toddlers and non-verbal patients from 6 months of age. Each spot vision screener exam returns spherical equivalent, cylinder and axis, pupil size, pupil distance and gaze readings for each eye in a matter of seconds, and flags results that fall outside the referral criteria.
Research indexed by the National Library of Medicine evaluated the Spot Vision Screener in community-based preschool vision screening alongside optotype testing, supporting its use as an objective tool for finding amblyopia risk factors in young children.
Why Practices Choose the Welch Allyn VS100
- Binocular capture from 1 meter — Both eyes are measured simultaneously at a non-threatening distance, which keeps young children comfortable and shortens each screening.
- No verbal response needed — A random visual pattern and audible sound attract the patient’s gaze, so the exam does not depend on letter recognition or sustained cooperation.
- Screens for amblyopia risk factors — Readings cover myopia, hyperopia, astigmatism, anisometropia, gaze asymmetry (strabismus) and anisocoria.
- Quantified refraction data — Spherical equivalent from -7.50 D to +7.50 D and cylinder from -3.00 D to +3.00 D in 0.25 D steps, with axis, pupil size and pupil distance.
- Wireless connectivity — Built-in 802.11 a/b/g/n Wi-Fi for transferring screening results to your office network.
- Portable for outreach — At about 2.55 lb with a carrying case included, the VS100 travels easily to schools, satellite clinics and community events.
See the Welch Allyn Spot Vision Screener in Action
This overview from Baxter, the parent company of Welch Allyn, shows how the Spot Vision Screener is used in pediatric and family medicine.
Clinical Applications
- Pediatric well-child visits — Fast, objective vision screening at routine early-childhood exams without extending appointment times.
- School and community screening — Battery operation and a 1-meter working distance suit gyms, classrooms and community centers.
- Early amblyopia risk detection — Flags refractive error, anisometropia and gaze asymmetry early so children can be referred for a full eye exam.
- Non-verbal and special-needs patients — Screening without chart reading helps with infants and patients who cannot respond to an acuity test.
- Adult screening — Useful for quick refractive and gaze checks in occupational, primary care and outreach settings.
Who This Is For
- Pediatricians and family physicians who want objective vision screening during well-child visits.
- Optometrists and pediatric ophthalmologists who need a quick first-pass screen before the full exam.
- School nurses and community health programs running vision days for large groups of children.
- Mobile and outreach screening teams that need a portable, battery-powered device.
Technical Specifications
| Specification | Detail |
| Manufacturer | Welch Allyn / Hillrom |
| Model | VS100 Spot Vision Screener |
| Measurement Principle | Optical reflex (binocular photoscreening) |
| Measuring Distance | 3.3 ft ± 2 in (1 m ± 5 cm) |
| Spherical Equivalent Range | -7.50 D to +7.50 D in 0.25 D increments |
| Cylinder Range | -3.00 D to +3.00 D in 0.25 D increments |
| Cylinder Axis | 1° to 180° in 1° increments |
| Pupil Size | 3.0 mm to 9.0 mm in 0.1 mm increments |
| Pupil Distance | 35 mm to 80 mm in 1 mm increments |
| Gaze Measurement | 0° to 20° nasal, temporal, inferior and superior |
| Fixation Target | Random visual pattern and audible sound |
| Time per Measurement | Seconds |
| Wireless | 802.11 a/b/g/n |
| Dimensions | 8.5 x 6.75 x 4.75 in (21.6 x 17.1 x 12.1 cm) |
| Weight | Approx. 2.55 lb (1,157 g) |
| Operating Temperature | 50°F to 104°F (10°C to 40°C) |
| Condition | Used |
| Warranty | 90 days (parts and workmanship) |
The VS100 is a screening device and does not replace a comprehensive eye exam. For practices that also need full handheld refraction and keratometry, also consider the Righton Retinomax K-Plus 5 handheld autorefractor/keratometer or the Nidek HandyRef-K handheld ref/keratometer. To add retinal imaging to a primary care workflow, see the Welch Allyn RetinaVue 700 handheld retinal camera.
Questions about the Welch Allyn VS100 Spot Vision Screener? Contact us for availability and shipping details.
