Huvitz Digital Chart HDC-100
The Huvitz HDC-100 Digital Chart is designed to deliver precise, efficient, and user-friendly visual acuity testing. Featuring over 100 test charts, including ETDRS and randomized options, it provides comprehensive support for vision and visual function assessments. With adjustable testing distances, vertical display capability, and seamless integration with Huvitz digital refractors such as the HDR-9000 and HDR-7100P, the HDC-100 ensures an optimized, accurate, and convenient workflow for any clinical environment.
Accurate Vision Measurement Achieved Through Diverse Test Charts

Various Charts
Over 100 Standard Eye Charts
The Huvitz HDC-100 Digital Chart offers a versatile library of over 100 test charts, enabling accurate and efficient vision assessments across diverse clinical settings. Designed to meet the needs of eye care professionals, it includes English, numeric, Landolt C, and Snellen charts, along with pediatric-friendly picture charts — ensuring comprehensive testing for patients of all ages.

ETDRS Chart
Standardized ETDRS Vision Testing Across Multiple Distances
The Huvitz HDC-100 ensures accurate and consistent visual acuity measurements through fully standardized ETDRS charts calibrated for multiple testing distances. Each chart maintains precise scaling and uniform letter size reduction using the LogMAR system, allowing eye care professionals to obtain decimal-level accuracy and enhanced reliability in vision assessments.

Low Vision 0.03/0.05/0.08
Specialized Test Charts for Low-Vision Patients
The Huvitz HDC-100 is designed to support accurate assessments for patients with low visual acuity, offering chart levels of 0.03, 0.05, and 0.08 for precise measurement when standard charts are insufficient. This advanced functionality enables eye care professionals to perform detailed low-vision evaluations, ensuring optimal diagnostic accuracy for every patient.

Black & White Reversed Chart
Black & White Inverted Charts for LASIK Patients
The Huvitz HDC-100 provides black-and-white inverted charts specifically designed to evaluate contrast sensitivity and visual performance in LASIK patients. By minimizing glare and enhancing contrast perception, these charts enable more precise and reliable post-surgical vision assessments.

Random Chart
Randomized Test Charts for Reliable Vision Assessment
The Huvitz HDC-100 features randomized chart sequencing to prevent patient memorization and ensure more objective test results. During repeated examinations, charts of identical size appear in different randomized combinations, enhancing test reliability and diagnostic accuracy for consistent visual performance evaluation.

10-Step Brightness Control
10-Level Contrast Adjustment for Advanced Vision Analysis
The Huvitz HDC-100 offers a 10-level contrast control, ranging from 100% to 1.5%, enabling precise contrast sensitivity testing and postoperative vision assessment. This feature provides clinicians with enhanced flexibility to evaluate subtle visual performance differences, particularly useful for patients recovering from ophthalmic or refractive surgery.
User-Centered Vision Testing Environment Enhanced for Convenience

Screen Portrait
Adjustable Testing Distance and Vertical Display Mode
The Huvitz HDC-100 provides customizable testing distances ranging from 1.5 m to 8 m, adjustable in 0.1 m increments, ensuring optimal flexibility across different clinical environments. Supporting both horizontal and vertical display modes, this system seamlessly adapts to a variety of exam room layouts and testing conditions, enhancing usability and workflow efficiency for practitioners.

HDR Series Networking
Playback of Educational Images and Videos
The Huvitz HDC-100 allows the display of sample images and videos illustrating various refractive errors, including myopia, hyperopia, and astigmatism. This feature enhances patient understanding and supports clinical education during consultations. Additionally, users can easily play custom videos or display images directly from a USB drive, offering greater versatility for personalized demonstrations and practice branding.
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| Hardware Specification | |
| Screen | 24 inch (61.1 cm) WUXGA TFT LCD |
| Visible area | (W)518.4×(H)324.0 mm |
| Screen Ratio | 16:10 |
| Resolution | 1920×1200 pixels |
| Brightness | Max. 300 cd/㎡ |
| Refraction Distance | 1.5~8.0m (0.1m step) / 4.75 ~26.00 feet (0.25 feet step) |
| Main Processor |
Amlogic S905 SoC 4 × ARM Cortex-A53 1.5GHz 64bit ARMv8 Architecture @28nm / 3×ARM Mali-450 MP 700MHz |
| Internal Memory | MicroSD 16GB 90MB/s |
| Power | DC 12V 5A |
| Power Consumption | 55W |
| Control | Infrared radiation or serial communication of RS-232 |
| External Interface | 4x USB, 1x RS-232, 1x Ethernet (10/100/1000) |
| Dimension and Weight | (W)534×(H)361×(D)41 mm, approximately 4.0 kg |
| Software Specification | |
| Operating System (OS) | Google’s Android |
| Multi-channel | Max. 4 channels |
| Optional | |
| Standard Accessory | IR Remote-control, Wall-mount bracket |
| Optional Accessory | Floor stand, Red/Green glass |
| Hardware Specification | |
| Screen | 24 inch (61.1 cm) WUXGA TFT LCD |
| Visible area | (W)518.4×(H)324.0 mm |
| Screen Ratio | 16:10 |
| Resolution | 1920×1200 pixels |
| Brightness | Max. 300 cd/㎡ |
| Refraction Distance | 1.5~8.0m (0.1m step) / 4.75 ~26.00 feet (0.25 feet step) |
| Main Processor |
Amlogic S905 SoC 4 × ARM Cortex-A53 1.5GHz 64bit ARMv8 Architecture @28nm / 3×ARM Mali-450 MP 700MHz |
| Internal Memory | MicroSD 16GB 90MB/s |
| Power | DC 12V 5A |
| Power Consumption | 55W |
| Control | Infrared radiation or serial communication of RS-232 |
| External Interface | 4x USB, 1x RS-232, 1x Ethernet (10/100/1000) |
| Dimension and Weight | (W)534×(H)361×(D)41 mm, approximately 4.0 kg |
| Software Specification | |
| Operating System (OS) | Google’s Android |
| Multi-channel | Max. 4 channels |
| Optional | |
| Standard Accessory | IR Remote-control, Wall-mount bracket |
| Optional Accessory | Floor stand, Red/Green glass |




