1. Compatible slit lamp types
EyeStream currently supports slit lamps with the following configuration:
Upper illumination (upper light source) slit lamps
Rotation drum magnification system (typically 3 or 5 magnification steps)

2. Haag-Streit BQ900 and similar models
For slit lamps such as the Haag-Streit BQ 900 (and similar designs), EyeStream is directly compatible.
These models typically provide sufficient mounting space and structural support
No additional measurement is usually required for basic compatibility confirmation

For Topcon-style slit lamps or similar designs, please perform the following measurements to confirm compatibility:
A. Eyepiece center-to-center distance
Place a ruler horizontally beneath the two eyepieces
Measure the distance between the optical center points of both eyepieces
This confirms whether the EyeStream optical alignment module can be properly positioned

B. Vertical clearance for joystick installation
Measure the vertical distance from the bottom of the eyepiece assembly to the top of the joystick

4. Final verification
If you are unsure about compatibility after measurement:
Please send photos with ruler markings clearly visible
Include a side view of the slit lamp with joystick area
Our engineering team will verify installation feasibility