There are three digital vision chart models and types in Hongdee for near vision and far vision diagnosis.
● Elite: 5G storage space; working distance from 1 meter to 7 meters; easier to recognize the buttons
● Essence: no storage space; working distance from 2 meters to 7 meters; complex to recognize the buttons
● VC-100: no storage space; working distance from 2 meters to 6.5 meters; complex to recognize the buttons
By the brief three models’ digital vision chart details, you will know which one suits your needs. And then we will introduce more details of the three types for you.
If you don’t know clearly, or which type is available for you, feel free to contact us. We will reply within 20 minutes.
- 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 | 4.8 kg | 5.3 kg | 1 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.