Description
What’s Included
- Carl Zeiss SL-115 Classic slit lamp with Galilean optics
- Haag-Streit AT 870 applanation tonometer
- Power supply and connection cables
- 90-day Digital Eye Center warranty
Condition & Warranty
Used. This unit has been fully inspected and functionally tested — the Zeiss Galilean optics are clear and free of internal cloudiness, the joystick tracks smoothly across the X-Y-Z axes, the magnification changer locks into each detent, and the Haag-Streit AT 870 tonometer swings into the measuring path and reads cleanly. Covered by a 90-day warranty on parts and workmanship.
Zeiss SL-115 Slit Lamp — Used Biomicroscope with Haag-Streit AT 870 Tonometer
The Zeiss SL-115 slit lamp is Carl Zeiss’s compact, essentials-focused biomicroscope built around a three-step Galilean magnification changer and the clean, high-contrast optics the brand is known for. This used Zeiss SL-115 slit lamp package pairs the instrument with a genuine Haag-Streit AT 870 applanation tonometer, giving a practice a complete anterior-segment examination and intraocular-pressure workstation on a single mount. Decoupled slit-width and slit-length controls, continuous ±90° slit rotation, and a stable joystick base make it a dependable choice for daily clinical use.
The Goldmann applanation method used by the AT 870 remains the reference standard for measuring intraocular pressure. A National Library of Medicine study confirms strong concordance between slit-lamp-mounted Goldmann applanation tonometry and other validated methods, supporting its continued role in routine glaucoma assessment.
Why Practices Choose the Zeiss SL-115
- Zeiss Galilean optics — bright, high-contrast stereoscopic imaging of the anterior segment with excellent depth perception.
- Three-step magnification changer — 8×, 12×, and 20× with standard 10× eyepieces, selectable at a turn without changing eyepieces.
- Decoupled slit control — slit width and slit length adjust independently, with continuous ±90° rotation of the slit image.
- Continuous slit dimensions — slit width from 0 to 14 mm and length adjustable through discrete steps and continuously from 1 to 14 mm.
- Integrated Haag-Streit AT 870 tonometer — Goldmann applanation IOP measurement built into the same examination position.
- Smooth mechanical joystick — precise X-Y-Z positioning with a stable, well-damped base.
- Compact footprint — space-saving architecture that fits comfortably into smaller exam lanes.
Clinical Applications
- Routine anterior-segment biomicroscopy of the lids, conjunctiva, cornea, iris, and lens
- Goldmann applanation tonometry for glaucoma screening and monitoring
- Evaluation of dry eye, corneal abrasions, and foreign-body removal
- Contact-lens fitting assessment and follow-up
- Cataract evaluation and pre-operative anterior-segment review
Who This Is For
- Optometry and ophthalmology practices adding a reliable second exam lane
- New or satellite clinics equipping an anterior-segment workstation on a budget
- Practices that want genuine Zeiss optics with integrated Goldmann tonometry
- Buyers replacing an aging slit lamp with a serviced, warrantied unit
Technical Specifications
| Specification | Detail |
| Optical system | Galilean, stereoscopic |
| Magnification | 3 steps — 8×, 12×, 20× (with 10× eyepieces) |
| Slit width | Continuous, 0 to 14 mm |
| Slit length | Steps 0.5 / 3.5 / 8 / 14 mm; continuous 1 to 14 mm |
| Slit rotation | Continuous, ±90° |
| Tonometer | Haag-Streit AT 870, Goldmann applanation |
| IOP measuring range | 0 to 78 mmHg |
| Positioning | Mechanical joystick, X-Y-Z |
| Condition | Used |
| Warranty | 90-day Digital Eye Center warranty |
Compare Slit Lamp Options
| Feature | Zeiss SL-115 | Marco G4 Ultra | Topcon SL-2G |
| Optical type | Galilean | Galilean (Zeiss-type) | Galilean |
| Magnification steps | 3-step | 5-step | 2-step |
| Tonometer | Haag-Streit AT 870 | Haag-Streit 870 | Haag-Streit 870 |
| Condition | Used | Used | Used |
| Price | $3,850 | $3,850 | $4,200 |
Also consider the Marco G4 Ultra for a five-step magnification changer at the same price, or the Topcon SL-2G if you prefer a Topcon platform.
Questions about the Zeiss SL-115? Contact us for availability and shipping details.
