Description
Haag Streit BM 900 Slit Lamp — Used Swiss-Made Biomicroscope with AT 900 Goldmann Tonometer
The Haag Streit BM 900 slit lamp is one of the most enduring diagnostic instruments in clinical ophthalmology — Swiss-engineered, optically precise, and built to deliver reliable anterior segment examination across decades of clinical use. This used unit comes complete with the AT 900 Goldmann applanation tonometer, giving your practice a fully capable IOP measurement workstation at a fraction of the cost of new equipment. With five-step magnification from 6× to 40×, continuously variable slit illumination, and 100 mm working distance, the Haag Streit BM 900 slit lamp handles the full spectrum of anterior segment examination in a compact, joystick-driven platform that ophthalmologists and optometrists have relied on for over 50 years.
According to StatPearls (National Library of Medicine), the slit lamp biomicroscope remains the cornerstone instrument for anterior segment assessment, enabling detailed examination of the cornea, conjunctiva, iris, lens, and anterior vitreous — confirming its essential role in every comprehensive eye examination.
Why Practices Choose the Haag Streit BM 900
- Swiss optical quality — Haag-Streit optical engineering delivers exceptional clarity and contrast across all five magnification steps (6×, 10×, 16×, 25×, 40×), the same optical standard the platform has maintained for over five decades
- AT 900 Goldmann tonometer included — the gold standard for intraocular pressure measurement mounts directly on the slit lamp, enabling IOP measurement without moving the patient or switching to a separate instrument
- Halogen illumination with variable slit control — continuously variable slit width (0–14 mm) and stepped height control support diffuse, direct focal, retroillumination, and specular reflection examination techniques
- 100 mm working distance — comfortable patient positioning during prolonged examination and contact lens fitting without operator fatigue
- Camera-ready design — compatible with beam splitter adapters for anterior segment photography, documentation, and teaching applications
- Long-established parts availability — the BM900 platform has been in continuous production for over 50 years; bulbs, prisms, and service are widely available worldwide
- Compact joystick base — smooth XYZ positioning with joystick and elevation knob for precise alignment during biomicroscopy and tonometry
- Used condition, inspected and verified — confirmed in working order with clear optics, covered by a 90-day Digital Eye Center warranty
Clinical Applications
- Anterior segment biomicroscopy: cornea, conjunctiva, iris, lens, and anterior vitreous examination
- Goldmann applanation tonometry for intraocular pressure measurement in glaucoma screening and monitoring
- Contact lens fitting and fluorescein pattern evaluation with broad illumination range
- Foreign body detection, corneal abrasion, and anterior segment trauma evaluation
- Pre- and post-operative anterior segment assessment following cataract, refractive, and corneal procedures
- Anterior segment documentation when paired with a beam splitter or camera adapter
Who This Is For
- Ophthalmology and optometry practices seeking a reliable, full-featured used slit lamp with Goldmann tonometry at a cost-effective price
- Practices replacing aging slit lamp equipment and needing a proven Swiss-made platform with widely available service support
- Multi-location clinics or satellite offices equipping additional exam lanes without the cost of new instrumentation
- Glaucoma subspecialty practices requiring integrated AT 900 Goldmann IOP measurement alongside high-quality biomicroscopy
Technical Specifications
| Specification | Detail |
| Model | Haag Streit BM 900 |
| Type | Slit lamp biomicroscope |
| Magnification Steps | 6×, 10×, 16×, 25×, 40× (5-step drum) |
| Eyepieces | 12.5× wide-field |
| Illumination | Halogen 8V / 20W |
| Slit Width | 0–14 mm (continuously variable) |
| Slit Height | 1–14 mm (stepped) |
| Working Distance | 100 mm |
| Tonometer Included | Haag-Streit AT 900 Goldmann applanation tonometer |
| Tonometer Range | 0–80 mmHg |
| Condition | Used |
| Warranty | 90-day Digital Eye Center warranty |
What’s Included
- Haag Streit BM 900 slit lamp
- Haag-Streit AT 900 Goldmann applanation tonometer
- Dust cover
- 90-day Digital Eye Center warranty
Condition & Warranty
Used. This Haag Streit BM 900 slit lamp has been inspected and confirmed in working condition with clear optics. Covered by a 90-day warranty on parts and workmanship.
Compare Slit Lamp Options
| Feature | Haag Streit BM 900 | Haag-Streit BQ 900 | Topcon SL-D8Z |
| Magnification | 5-step (6×–40×) | 5-step (6×–40×) | Continuous zoom |
| Illumination | Halogen | LED-capable | Halogen |
| Tonometer | AT 900 included | AT 900 included | AT 900 included |
| Condition | Used | Used | Used |
| Price | $5,500 | $9,900 | $6,600 |
For practices adding fundus imaging capability, the Haag Streit Fundus Module 300 mounts directly to the BM 900, enabling posterior segment imaging without a separate retinal camera. Also consider the Marco G5 Ultra Slit Lamp for a LED-illuminated alternative at a similar price point.
Questions about the Haag Streit BM 900 slit lamp? Contact us — we’re happy to help.







