Description
What’s Included
- Keeler PSL One SL4 portable slit lamp
- Carrying case
- Power cable / charger (as photographed)
- 90-day Digital Eye Center warranty
Condition & Warranty
Used. Tested before listing — slit width and intensity verified, magnification confirmed, LED illumination at full intensity, battery operation verified, carrying case latch and foam inserts confirmed intact. Cleaned. Covered by a 90-day warranty on parts and workmanship.
Keeler PSL One SL4 — Used Portable LED Slit Lamp with Carrying Case
The Keeler PSL One SL4 is Keeler’s flagship portable slit lamp — a fully-featured handheld biomicroscope built for bedside, mobile, and home-visit examinations. This used keeler psl one ships in its carrying case ready for clinical deployment outside the standard exam-lane environment.
The PSL One delivers LED illumination with continuously variable slit width, three-step magnification, and built-in cobalt blue and red-free filters — replicating the core anterior-segment workflow of a benchtop slit lamp in a handheld form factor. Battery operation makes it the right choice for hospital bedside rounds, ER consults, nursing home visits, low-vision evaluations, and pediatric exams where the patient cannot come to a chair.
According to a National Library of Medicine-indexed study (Can J Ophthalmol, 2015), yellow- and blue-filtered fluorescein imaging produces clinically superior conjunctival and corneal staining contrast — the standard slit-lamp biomicroscopy workflow the PSL One was designed to extend beyond the chair.
Why Practices Choose the PSL One
Fully portable handheld design — examine patients at the bedside, in the ER, or on home visits where a benchtop slit lamp can’t go.- LED illumination — bright, color-accurate light source with no bulb replacement; long service life.
- Three-step magnification — covers routine biomicroscopy ranges in handheld format.
- Continuously variable slit width — full clinical range despite the compact form factor.
- Built-in cobalt blue and red-free filters — fluorescein and vessel/RNFL inspection without filter accessories.
- Battery operation — no AC tether required during exam; ideal for hospital rounds.
- Hard carrying case — protects optics during transport; foam-cut inserts hold the unit and accessories securely.
- Keeler reliability — same brand as Keeler’s indirect ophthalmoscopes; familiar UK manufacturer with global service.
Clinical Applications
- Bedside ophthalmology consults — anterior-segment exam in hospital rooms, ICU, ER.
- Home-visit eye care — slit-lamp biomicroscopy for homebound patients.
- Nursing home / assisted living rounds — exam without transferring patients to a chair.
- Pediatric exams — bring the slit lamp to the child instead of the reverse.
- Low-vision evaluation — patient comfort during the exam improves cooperation.
- Mobile / outreach clinics — fully portable exam capability for tele-ophthalmology workflows.
Who This Is For
- Hospital-based ophthalmologists who need a portable slit lamp for inpatient consults.
- Home-care, nursing home, or mobile-clinic providers serving patients who can’t come to the chair.
- ER ophthalmology coverage — quick anterior-segment exam without moving the patient.
- Pediatric and low-vision practices where patient mobility is limited.
- Veterinary ophthalmologists who frequently work outside a standard exam lane.
Technical Specifications
| Specification | Detail |
| Type | Portable handheld LED slit lamp biomicroscope |
| Magnification | Three-step |
| Slit width | Continuously variable |
| Illumination | LED (no bulb replacement) |
| Filters | Cobalt blue + red-free (built-in) |
| Power | Battery + AC adapter |
| Form factor | Handheld portable; carrying case included |
| Manufacturer | Keeler (UK) |
| Condition | Used — tested before listing |
| Warranty | 90-day DEC warranty on parts and workmanship |
Compare Portable Slit Lamp Options
Where this Keeler PSL One fits in DEC’s portable slit-lamp inventory:
| Model | Illumination | Price | Notes |
| Keeler PSL One SL4 | LED | $3,080 | Keeler portable — this listing |
| Kowa SL-15 Portable | Halogen | $2,750 | Kowa portable alternative |
Prefer a Kowa-branded portable? See the Kowa SL-15 Portable.
Questions about the Keeler PSL One? Contact us for current availability or accessories.
