Visual Acuity Systems: Digital LCD Acuity Charts
A visual acuity system is the reference every refraction is measured against, so it belongs in the same conversation as your phoropter and autorefractor rather than being treated as an afterthought. A modern digital acuity chart replaces printed charts and mirror-based projector setups with an LCD panel that stores dozens or hundreds of optotypes, scales them automatically to the room's working distance, and drives them from a remote or from the refractor itself. In practice that means fewer transcription steps, tighter repeatability between examiners, and a lane that looks current to the patient sitting in the chair.
US Ophthalmic is a US provider of visual acuity systems for optometry and ophthalmology practices, optical retail and telemedicine programs. We carry LCD acuity charts from EZER, Huvitz and LuxVision spanning 21-inch to 24-inch panels, polarized and Full HD options, and compact all-in-one refraction systems for practices that do not have a traditional lane to give up. Each unit is backed by a US warranty and direct support, and our team will help you match panel size, chart library and refractor compatibility to your room.
How to choose a visual acuity system
- Room length and working distance: This is the first constraint, not the last. A digital chart that automatically calibrates optotype size to the working distance — as the EDC-2600, EDC-2600P and LDC-2600 do — lets you place the panel where the room allows instead of forcing the room to fit a fixed geometry. For short lanes, confirm the system supports your distance directly rather than relying on a mirror.
- Panel size and display quality: Screen size and resolution drive how cleanly small optotypes render at distance. Options here run from the 21-inch LuxVision LDC-2600 through 23-inch and 24-inch EZER EDC-BH panels up to the Huvitz HDC-9100, a Full HD 1,920 x 1,080 24-inch color TFT-LCD with a polarized panel for more precise testing.
- Chart library and test coverage: Count the tests you actually run, not just the letter charts. Look for masking functions (single, horizontal and vertical isolation), binocular balance, and patient-education imagery. The Huvitz HDC-100 carries over 100 test charts including ETDRS and randomized optotypes; the EDC-2600P adds polarization with binocular balance and horizontal/vertical testing.
- Refractor and lane integration: An acuity system pays off fastest when it is driven by the refractor. Verify compatibility before you buy: the Huvitz HDC-7000 chart system is built to work with the HDR-7000, HDR-9000 and CDR-3100 digital refractors, and the HDC-100 integrates with the HDR-9000 and HDR-7100P. If you run a digital refractor, matching the chart to it removes a manual step from every exam.
- Mounting, footprint and future flexibility: Slim panels such as the EDC-BH and EDC-BH-P are designed for straightforward wall mounting, and several systems offer multiple mounting options plus auto-off. If floor space is the binding constraint, a compact all-in-one system like the EZER ETR-770 performs subjective and objective refraction in a very small footprint and supports remote refraction workflows.
- Warranty and US support: An acuity system is a long-lived fixture in the lane. Buying from a US provider means a US warranty and a direct line to a team that can confirm compatibility with the refractor and room you already have.
Visual acuity systems we carry
These are real models available through US Ophthalmic. Shortlist by panel size, chart library and refractor compatibility, then request a quote for configuration and current availability.
| Model | Display / type | Notable capability | Best for |
|---|---|---|---|
| Huvitz HDC-9100 | 24" Full HD color TFT-LCD, 1,920 x 1,080, polarized panel | Full HD optotypes with a polarized panel for more precise acuity testing | Practices wanting the most complete Huvitz chart and optotype library |
| Huvitz HDC-100 | Digital chart, adjustable testing distances, vertical display capable | Over 100 test charts including ETDRS and randomized optotypes | Clinics needing broad test coverage and integration with HDR-9000 / HDR-7100P refractors |
| Huvitz HDC-7000 | LCD chart system that fits a wide range of displays | Compatible with HDR-7000, HDR-9000 and CDR-3100 digital refractors | Practices already running a Huvitz digital refractor lane |
| EZER EDC-2600P | 24" LCD with polarization and 20/20 control | Binocular balance plus horizontal/vertical testing; chart size auto-calibrates to working distance | Lanes that need polarized testing and a fuller test battery |
| EZER EDC-2600 | 24" LCD digital chart | Auto-calibrating chart size, masking functions, swappable software, multiple mounting options | A modern everyday lane replacing a mirror-based projector setup |
| EZER EDC-BH-P | 24" slim LCD acuity chart | Dedicated refracting display built for easy wall mounting | Rooms where a slim, wall-mounted panel is the cleanest fit |
| EZER EDC-BH | 23" slim LCD acuity chart | Dedicated refracting display built for easy wall mounting | Compact lanes upgrading from printed charts |
| LuxVision LDC-2600 | 21" LCD digital chart | Auto-calibrating chart size; software stored on an easy-to-replace SD card | Smaller rooms and practices wanting a straightforward digital chart |
| EZER ETR-770 | Compact all-in-one refraction system | Subjective and objective refraction in an ultra-small footprint; supports remote refraction | Optical retail, space-constrained clinics and telemedicine programs |
Frequently asked questions
What is a visual acuity system? It is the chart system that presents optotypes to the patient during refraction. A digital acuity system replaces printed charts and mirror-based projectors with an LCD panel that stores a library of charts, scales them to the room's working distance and is driven by remote or by a connected digital refractor.
Is a digital LCD chart better than a chart projector? For most modern lanes, yes on flexibility. An LCD chart holds a far larger test library, auto-calibrates optotype size to the working distance, supports masking and patient-education imagery, and avoids the alignment and ambient-light constraints of a mirror-and-projector setup. Chart projectors still have a place in some rooms, and we carry both — the right answer depends on your room geometry and how you refract.
What screen size do I need? Panel size should follow room length and how small an optotype you need to resolve at distance. Our current lineup runs from the 21-inch LuxVision LDC-2600 through 23-inch and 24-inch EZER panels to the Full HD 24-inch Huvitz HDC-9100. Tell us your working distance and we will confirm which panel suits the room.
Will the chart work with my digital refractor? Check compatibility explicitly, because it is the difference between a connected lane and a manual one. The Huvitz HDC-7000 is built to work with the HDR-7000, HDR-9000 and CDR-3100, and the HDC-100 integrates with the HDR-9000 and HDR-7100P. Send us your refractor model and we will confirm the pairing before you order.
Can I run acuity testing without a full exam lane? Yes. The EZER ETR-770 is a compact refraction system that performs both subjective and objective refraction in a very small footprint, without a traditional lane, and is widely used for remote and telemedicine refraction. It is a common choice for optical retail and space-constrained clinics.
Do these come with a US warranty? Yes. US Ophthalmic is a US provider, so visual acuity systems purchased here carry a US warranty and direct support from our team. Ask about configuration and current availability when you request a quote.
