For detailed subjective refraction beyond phoropter limits, Hongdee’s trial lens set and frame provide a full complement of lenses and prisms. The adjustable frame ensures stable lens positioning, while the complete lens box includes specialized diagnostic lenses (e.g., Maddox rod, polarized). U can conduct cross-cylinder tests, cover tests, and binocular balancing with ease.
-Classic and traditional design, made out of the metal strong and durable.
-Adjustable PD, temple length, and cylinder axis, making it easy to test.
| Parameter | Specification |
| PD Range | 48 mm – 82 mm |
| Vertex Distance | 12 mm – 18 mm |
| Inclination Angle | 0° – 20° |
| Frame Material | Lightweight alloy |
| Adjustments | Nose pad, temple length, tilt |
| Weight Capacity | 2-5pcs lenses |
| Power | N/A |
| Footprint | Packaging size |
- Versatility: Suitable for complex cases where phoropters fall short.
- Durability: High-grade lens construction resists cracking and chipping.
- Ease of organization: Labeled compartments streamline exam workflow.
We specialize in providing high-quality diagnostic devices, refraction systems, low vision aids, and ophthalmic furniture — all backed by a complete supply chain, strong OEM/ODM service, and a customer-first philosophy.