Ophthalmology
ri-scope L2 Ophthalmoscope
Riester · 3725-203
Article No. AK-OPH-079
The ri-scope L2 Ophthalmoscope is a high-precision diagnostic instrument for reliable fundus examination in ophthalmology and general medical practice. It delivers clear, distortion-free visualisation of intraocular structures and supports the diagnosis of conditions such as retinal tears, macular degeneration, and glaucoma. High-performance optics with an aspherical condenser lens and parallel beam path ensure sharp, well-illuminated imaging with minimal reflections. The dustproof housing protects the optical system for long-term clinical use. A 29-lens dioptre wheel enables precise focusing across a wide correction range (+1 to +40 / -1 to -35). The aperture system provides flexible control with slit, fixation star, semicircle, and multiple circular apertures for targeted examination of structures such as the optic disc and macula. Integrated red-free, blue and polarisation filters enhance diagnostic clarity and can be selected individually for each aperture, supporting more detailed clinical assessment. The device is compatible with multiple power options, including alkaline batteries, Ri-Accu® rechargeable systems, and diagnostic stations. The long-life LED technology (up to 10
Specifications
- Brand
- Riester
- Model
- 3725-203
- Product type
- Ophthalmoscopes
- Plus
- +1 to +10, +12, +15, +20, +40
- Minus
- -1 to -10, -15, -20, -25, -30, -35
- Operating temperature
- 0 °C to 40 °C
- Relative humidity (operation)
- 30% to 70% (non-condensing)
- Storage temperature
- -10 °C to 55 °C
- Relative humidity (storage)
- 10% to 95% (non-condensing)
- Air pressure
- 800 hPa to 1100 hPa
- Optics
- Aspherical condenser lens, parallel beam path, dustproof housing
- Apertures
- Slit, fixation star, semicircle, small/medium/large circles
- Filters
- Red-free filter, blue filter, polarisation filter, separately switchable for each aperture
- Operation
- On/off switch, bayonet mount, Rheotronic®/Rheotronik® technology
- Ergonomics
- Spectacle protection, black chrome-plated metal handles
- Ambient temperature (operation)
- 0 °C to 40 °C