Whether U need a basic Snellen chart or advanced ETDRS testing in a clinical research setting, Hongdee’s vision charts cover all scenarios. VC-100 provides a portable LED solution, while Essence and Elite models offer high-definition LCD display with programmable sequences. Each unit comes with a wall-mount bracket and remote control.
- Versatile optotypes: U can display Snellen, ETDRS, Tumbling E, or custom graphics.
- Adjustable brightness: Ensures clear letter contrast under various ambient lighting.
- Remote control & software: Preloaded testing protocols and patient data storage.
| Parameter | VC-100 | Essence | Elite |
| Picture |  |
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| Screen Size | 21.5″ high-resolution LCD | 17″ LCD | Any monitor size (no fixed screen; uses HDMI connection) |
| Working Distance | 2.0–6.5 m (adjustable in 0.1 m increments) | 2.0–7.0 m | 1.0–7.0 m (continuously adjustable) |
| Storage | No internal storage (updates via USB) | No internal storage (updates via SD card) | 5 GB internal storage (images, video, audio); online update capability |
| Remote Control | Complex remote with backlit buttons | Complex remote (standard, non-fluorescent) | 2.4 GHz RF fluorescent remote (no need to point directly; usable in the dark) |
| Optotypes | Snellen, ETDRS, Tumbling E, numbers, alphabets, children's charts, color-blind tests (R/G) | Snellen, ETDRS, Tumbling E, Landolt rings, kids' symbols; mirror function; screen savers | Randomized optotypes; mirror function; imperial & metric standards; supports any optotype layout via HDMI input |
| Update Method | USB flash drive | SD card | Online update |
| Power | AC 110–240 V, 50–60 Hz, 15 W | AC 110–240 V, 50–60 Hz, 15 W | AC 110–240 V, 50–60 Hz, 15 W |
| Net Weight | ~2 kg | ~2 kg | ~2 kg |
| Mounting | Wall mount bracket or tabletop | Wall mount bracket or tabletop | HDMI/VGA connection; compatible with any monitor via adaptor |
- Easy integration: Compatible with standard exam room wiring and mounting brackets.
- Customizability: Upload custom logos or optotypes to reinforce clinic branding.
- Durability: Anti-glare screens and rugged housings protect against accidental damage.
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.