The Firefly S390L Digital Slit Lamp
MediWorks

The Firefly S390L Digital Slit Lamp

The Firefly S390L is a fully integrated digital slit lamp with a built-in 12-megapixel camera, MediView imaging software, and an included 23.8-inch all-in-one PC — designed to turn everyday anterior segment exams into documented, shareable clinical conversations. High sensitivity imaging keeps the slit sharp and clear under weak light, while wide dynamic range captures iris and sclera simultaneously with realistic color distribution. The Firefly also supports infrared meibomian gland evaluation with AI-assisted gland loss analysis, orthokeratology lens fitting documentation, and an upgradeable path to a full dry eye diagnostic system covering TBUT, tear meniscus height, lipid layer thickness, and corneal fluorescein staining. For practices that want integrated slit lamp documentation, dry eye conversation support, and cleaner anterior segment imaging without bolting on aftermarket adapters.

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Practice Fit

Where The Firefly Wins

If your practice wants to document every slit lamp finding with integrated digital imaging — not a bolted-on aftermarket camera adapter — The Firefly is the platform.

Best Fit

Comprehensive ophthalmology, medical optometry, anterior segment, and dry-eye-focused practices that want to document every slit lamp finding with integrated digital imaging — not a bolted-on aftermarket camera adapter.

Why This

The Firefly’s 12-megapixel camera is engineered into the optical path with automatic exposure and wide dynamic range. Infrared meibography with AI gland analysis, ortho-k lens fitting capture, and an upgrade path to a full dry eye diagnostic workup give you documentation capabilities that bolt-on solutions cannot match.

Practice Impact

Strengthens patient education with side-by-side image comparisons, supports dry eye workups with objective meibomian gland and tear film evidence, and turns routine anterior segment findings into visual conversations that improve treatment acceptance.

Platform Strengths

Why Practices Choose The Firefly

Integrated 12 MP Digital Imaging

The camera is built into the optical path — not adapted or bolted on. Every slit lamp exam becomes an imaging opportunity with automatic exposure, gain, and white balance, plus 30fps video capture for real-time documentation.

Meibography & Dry Eye Support

Infrared meibography with AI-assisted gland loss analysis identifies meibomian gland changes. Upgradeable to a complete dry eye diagnostic system covering TBUT, tear meniscus height, lipid layer thickness, blink quality, and corneal staining.

Complete Workstation Included

Ships with a 23.8-inch all-in-one PC (i5 processor, 8GB RAM, 256GB SSD + 1TB storage) running MediView software. Ready to capture, analyze, and manage patient images immediately after installation.

Image Quality

Integrated Digital Imaging Examples

Anterior segment and meibomian gland images captured with The Firefly S390L — 12 MP integrated camera with wide dynamic range and infrared meibography.

The Firefly S390L meibomian gland analysis interface

Meibomian Gland Analysis — AI-assisted gland loss evaluation via infrared meibography

The Firefly S390L meibomian gland loss detail

Gland Loss Detail — High-magnification infrared imaging of meibomian gland structure

The Firefly S390L wide dynamic range anterior segment image

Wide Dynamic Range — Iris and sclera captured simultaneously with realistic color

Clinical images and software screenshots courtesy of MediWorks.

Specifications

Technical Details

Microscope Type
Galilean, 5-step revolving drum
Magnification
6.3×, 10×, 16×, 25×, 40× (12.5× eyepieces)
Optical Resolution
2700 × N lp/mm (200 lp/mm)
Image Sensor
1/2.5" 12 MP (4056 × 3040)
Video
2592 × 1944 @ 30 fps, MP4 H.264
Slit Width
0–14 mm continuous
Slit Length
1–14 mm continuous
Slit Angle
0–180°
Slit Inclination
5°, 10°, 15°, 20°
Aperture Diameters
14, 10, 5, 3, 2, 1, 0.2 mm
Filters
Heat-absorbing, ND, Red-free, Cobalt blue, Built-in yellow
Light Source
LED, ≥150 klx luminance
PD Range / Diopter Adjustment
52–80 mm / ±8D
Transmission Interface
USB
Included PC
i5-10500T, 8GB RAM, 256GB SSD + 1TB, 23.8" display (1920×1080)
Dimensions / Weight
740 × 450 × 530 mm / 17 kg (net)
Power
100–240V AC, 50/60 Hz, 1.2A
The Carolina Optics Advantage

Why buy through us?

Dry Eye Program Launch Support

We help you build a dry eye diagnostic and treatment program around The Firefly — from meibography workflows to patient education strategies and reimbursement guidance.

On-Site Installation & Training

We handle delivery, setup, calibration, and hands-on staff training so your team is capturing diagnostic-quality images from day one.

Same-Day Support

When you need help, you get our team directly — no call center, no ticket queue. Most issues resolved within 24 hours.

Ready to see The Firefly in action?

Talk to our team about pricing, configuration options, and scheduling a hands-on demo at your practice.

Request Pricing → Schedule a Demo →