--------------------------------------------------------------------------------------------------------------------- 1 USER MANUAL Automatic Visual Acuity Tester CDC-1 CDC-1 User Manual
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- IMPORTANT NOTICE This product may malfunction due to electromagnetic waves caused by portable personal telephones, transceivers, radio-controlled toys, etc. Be sure to avoid having objects such as, which affect this product, brought near the product.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 3 CONTENTS 1. 2. INTRODUCTION ...................................................................................................................... 6 1.1. OUTLINE OF PRODUCT ............................................................................................................................ 6 1.2. INTENDED USE .............................................
8. CDC-1 7.2. INSTALLING THE MAIN BODY ............................................................................................................... 28 7.3. CONFIGURATION..................................................................................................................................... 29 7.4. CONNECTION WITH DIGITAL REFRACTOR ......................................................................................... 29 USING MENU MODE AND FUNCTIONS ..............................
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 5 9.19. 10. MINUTE STEREO TEST ..................................................................................................................... 48 MAINTENANCE .................................................................................................................49 10.1. REPLACEMENT BATTERY ..............................................................
CDC-1 Introduction 1. 1.1.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 7 - During the test, understand and follow instructions. When patient comply above conditions, would get a correct test result. 1.6.
CDC-1 2. ----------------------------------------------------------------------------------------------------------------------------------- Information regarding Safety Introduction 2.1. Safety is everyone’s obligation and responsibility. Safe use of this device is important for everyone involved - installers, users, operators and device managers.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 9 2.2. Safety Symbols The International Electro technical Commission (IEC) announced the symbols that warn when connecting electric medical device’s power or that warn against calamity that may occur. Classification and symbol are as follows. It indicates the year of manufacture and the manufacturer. (Il indique l'année de fabrication et le fabricant.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Stack direction (Direction de la pile) Fragile , handle with care (Fragile, manipuler avec soin) Stack layer limitation (Limiter la couche de pile) Use no hooks (N'utilisez aucun crochet) Alternating Current (Courant alternative) Direct Current (Courant continu) Consult instructions for use (Consulter les instructions d'utilisation) Serial Number Symbol (Symb
--------------------------------------------------------------------------------------------------------------------- CDC-1 User 11 2.3. UDI Information UDI structure: (01) Manufacturer prefix number: 697046148; (11) manufacture date; (21) S/N code 2.4. Environmenta related Matters The environment to avoid in operation and storage. Place where device comes directly into contact with moisture (do not operate the device with wet hand) Place where device is exposed directly to sunlight.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Where the machine is exposed to chemical material or explosive gas. Be cautious so that things like dust and metal do not fall inside the machine. Don’t disassemble or open the product. HUVITZ does not take responsibility for the possible problems Be careful not to block the fan of the machine.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 13 Safety Precautions 2.5. This device was developed and proven according to the domestic and international safety specs. This guarantees this device’s high safety level. By law, a manufacturer is obligated to provide sufficient explanation of the matters pertaining to the device safety to device users.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 17. Do not touch both signal input, output or other connectors, and the patient at the same time. 18. Use DC adapter and power cable supplied together to keep the reliability of the device. 19. IEC standard needs to be satisfied with in order to connect an outside device with input/output signal or other connector.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 15 3. Characteristics ◼ CDC-1 has LCD panel supporting polarization which enables various kinds of polarization test. ◼ Through vision test can check color blindness/weakness. ◼ Through Contrast Test can check color ability based on frequency and brightness of contrast. ◼ Chart contrast can be easily adjusted by remote controller.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- ! WARNING Use only DC adapter and power cable provide by Shanghai HUVITZ. DC adapter provided by Shanghai HUVITZ is qualified for medical device. Manufacturer is NOT liable to any problem caused by using DC adapter or power cable which are not provided by Shanghai HUVITZ.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 17 Using the Device 4.2. Operation procedures may differ from users. Followings are the most basic operation sequence. ◼ Connect DC adapter to the device. Fix the adapter cable with cable tie to prevent it pulled off. ◼ Push ◼ Wait product’s initialization before C chart comes up. ◼ Let patients be in the test distance, instruct to watch charts.
◼ CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Do not use organic solutions such as alcohol, thinner, benzene, etc. to clean a surface of this product. It may damage the product ◼ In case of not using the device for a long time, please put a dust cover on the device after plugging off.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 19 ◼ Avoid places where the device could be affected by atmospheric pressure, humidity, temperature, ventilation, sunlight or by the air containing dust, salinity, sulfur and etc.. ◼ Install the device on a place stable and leveled ◼ Avoid places where the device is subject to excessive shocks or vibrations.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Precautions for Stroage 5.3. When sotre this device, please note the belowings. ◼ Avoid places where the instrument is exposed to water vapor or moisture directly. ◼ Avoid places where the instrument is exposed to direct sunlight. ◼ Avoid places where the temperature changes extremely. ◼ Avoid places near heating devices.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 21 6. 6.1. Configration Main Body ① ② ③ 1) ④ LCD WINDOW It displays charts, menu and other information. 2) IR Signal Receiver Window Receive remote controller signal through this window (Do not block this window. Remote signal will be affected) 3) OPERATION LED Indicates the operating status of the device. 4) POWER SWITCH Power ON/OFF switch.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- ⑤ ⑥ 5) ⑦ ⑧ EXTERNAL VGA PORT VGA port for external screen. User can see the same screen with what patient is watching. (For polarized charts, only half of it is displayed) 6) USB PORT Display images or video clips of USB stick insertecd on this port. Maximum 396 images/Video clips are available.
--------------------------------------------------------------------------------------------------------------------- 23 ! WARNING Do not cover ventilation slits. Overheating can cause a product malfunction. Remote Controller 6.2. 1) BUTTONS Buttons to excute chart, mask, program, menu, etc. 2) IR SIGNAL WINDOW IR signal is transmitted through this window.
3) CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- BATTERY It is in the back of the remote controller. Open the battery cover to replace battery (AA 1.5V, 2ea). After change batteries the IR channel of remote controller reset to default cahnnel 1. ④ ⑤ ⑪ ⑩ ⑥ ⑨ ⑦ ⑧ 4) CHART BUTTON Display charts for visual acuity test. BUTTON FUNCTION Randolph Ring (0.03~2.0) Alphabet (0.03~2.0) Numbers (0.03~2.
--------------------------------------------------------------------------------------------------------------------- CDC-1 25 Function Chart Charts for polarizing test are displayed differently on the display panel depending on the chart model BUTTON FUNCION LENS Red/Green Filter Red/Green Test, Cross grid Test for distance Astigmatism Test Cross cylinder Test Maddox rod Test Binocular balance Test Worth 4 dot Test, Dominant eye Test Polar, Cross Cylinder Polar Cross Cylinder Maddox rod Polar R
5) CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Program Button BUTTON FUNCTION ◀ Executes the previous step of executing program ▶ Executes the next step of executing program ▪ Executes the first step of the program PGM 1 P1 ▪ Pressing the button 3 times in a row executes programming PGM1 ▪ Executes the first step of the program PGM 2 P2 6) ▪ Pressing the button 3 times in a row executes programmin
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 27 BUTTON FUNCTION Press this button to adjust up/down angle of the screen. Arrows appear to indicate tilting mode is activated. Use mask up/down button to move the screen. When it is aligned with a patient, press this button again to exit from the tilting mode. New screen angle is saved automatically when exit.
7. CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Installiation Preparation 7.1. Before installing this device, carefully check the followings in advance. ◼ Product’s model name ◼ Accessories – refer accessory list ◼ Foreign material on the screen After complete checking, fully understand user manual then begin install by following procedure. Installing the Main Body 7.2.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 29 Configuration 7.3. When the installation is complete, turn on the power and set configuration. After initialization, basic chart is shown on the screen. Press menu button and configure test environment. Detail information is in the next chapter. Connection with Digital Refractor 7.4. This device can be connected to Shanghai HUVITZ or HUVITZ Digital Refractor.
② CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Selecting the Menu Press ③ button to set or select the menu item. Back to the Previous Page When there is no back button, press button instead. It will exit the current menu or back to the previous page. Functions in the Meun Mode 8.2. Below functions are provided in the menu mode.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 31 Vision Test 8.2.1. Vision test is consist of Color test and Contrast test ◼ Color Test Color test adopted Hahn Pseudoisochromatic Plates which was introduced by Dr Hann. Hahn Pseudoisochromatic Plates is composed of two tests, first test is Color Sensing Abnormality Detecting Test and the second test is Color Sensing Abnormality Grading Test.
CDC-1 ▪ ----------------------------------------------------------------------------------------------------------------------------------- Screening Test Start to find color vision abnormality. Ask a question on the screen After the examinee answers, press Use Use button to see a list of possible answers button to select patient’s answer from the list. And press to confirm. button to move to the next/previous chart. If select a document shape icon, it skips the test and go to the result screen.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 33 ◼ Contrast Test This test is designed to measure the ability of recognizing an object in surroundings having a low illumination or similar colors. Usual acuity test uses charts consist of black dark letters seen clearly against high illumination of white background.
CDC-1 8.2.2. ----------------------------------------------------------------------------------------------------------------------------------- Movie/Photo In this mode you can load image/video clip from internal memory or external USB. Use arrow buttons of remote controller select this function and press Use arrow buttons to select image/video file want to play and press to execute. to select. A box will appear around the image/video to indicate that it is selected.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 35 Setting 8.2.3. ◼ IR Channel ✓ Change IR channel ✓ If changed IR channel in the device, need to change the channel of remote controller too. ✓ To change remote controller IR channel, while pressing button, press button. Channel will change in 1→2→3→4→5→6→7→8→9→10→1 order for each pressing.
CDC-1 ◼ ----------------------------------------------------------------------------------------------------------------------------------- VA Notation ✓ ◼ Select diopter units shown next to charts Contrast ✓ Set options about contrast ✓ By changing Level values, can determine how much contrast changes per each button pressing ◼ Red/Green Adjustment ✓ Red/Green chart setup ✓ Adjust color banlance and hue of red/green filter ◼ Sleep Mode NOTE ▪ In mene mode, the sleep mode is disabled.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User 37 ◼ Web service In this screen set Wi-Fi connection to Huvitz Digital Refractor. - DR Connecton : Enable/Disable HDR or CDR connection NOTE ▪ When connect to HDR through Wi-Fi(AP) make setting as below.
8.3. 8.3.1. CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Other functions Adjusting Contrast Sensitivity Charts are displayed with default contrast set in contrast menu. To change contrast during test, press CONTRAST button on remote controller When press contrast button, new contrast value appears for a short time.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 39 How to edit P2 program ① Press P2 button 3 times, the screen displays “Programming PGM2” ② Select one chart then press right side button of ◀PROGRAM▶ to save. ③ Select the next chart then save it in the same way with ② ④ By repeating above, save charts want to use ⑤ Finally press P2 button to exit program edit. How to use P2 program ① Press P2 butotn one time.
CDC-1 9. 9.1. ----------------------------------------------------------------------------------------------------------------------------------- Optometric Test Using the Acuity Tester Cylinder Axis Test Title Purpose Content To determine the correcting astigmatic axis roughly. Chart Aux. Lens Procedure None ① Occlude one eye that’s not to be examined. ② Add spherical lens power as much as the patient can read numbers around the chart. ③ Ask the patient if any direction is seen thicker.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 41 9.3. Binocular Cylinder Axis Test Title Purpose Content To determine the correcting astigmatic axis roughly. Chart Aux. Lens Procedure Polarized filter ① Add spherical lens power as much as the patient can read numbers around the chart. ② Ask the patient if any direction is seen thicker.
9.5. CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Red/Green Test Title Purpose Content To determine the correcting spherical power Chart None Aux. Lens Polarized Filter Cross Cylinder(Fixed at 90) ① (Occlude one eye that’s not to be examined). ② Add about 0.5D for fogging if necessary. ③ Ask the patient which side looks clearer, on the green or on the red.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 43 9.7. Cross Cylinder Test for Power Title Purpose Content To refine the correcting cylinder power Chart Aux. Lens Jackson Cross Cylinder(±0.25 or ±0.50) ① Occlude one eye that’s not to be examined. ② Place the JCC lens before the eye such that its axes straddle at 90 degrees angles the correcting cylinder axis.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 9.10. Worth 4 Dot Test Title Purpose Content To Check the fusion and suppression Chart Aux. Lens Procedure Red/Green ① Open the both eyes. ② Place the red filter before the right eye and the green filter before the left eye. ③ Ask the patient how many targets he or she is seeing. 9.11.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 45 9.13. Coincidence Test Title Purpose Content To check the aniseikonia and measure the lateral and vertical phoria Chart Aux. Lens Procedure Polar ① Open the both eyes. ② Place the polarizing filters before the eyes, 135 degree on the right and 45 degree on the left. ③ Check the coincidence of right and left bracket 9.14.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 9.16. Maddox Rod Test & Thorington Test Title Purpose Content To measure the phoria Chart Vertical Maddox Rod Test Vertical Maddox Rod on right Horizontal Maddox Rod Test Horizontal Maddox Rod on left Aux. Lens Procedure ① Open the both eyes. ② Place the proper lens before eye.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 47 9.17. Zeiger Test Title Purpose Content To measure the phoria Chart Aux. Lens Procedure Polar ① Open the both eyes. ② Place the polarizing filters before the eyes, 135 degree on the right and 45 degree on the left. ③ Add prism before eyes until the patient sees the lines and gradations aligned. 9.18.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 9.19. Minute Stereo Test Title Purpose Content To measure the fine depth perception of stereoscopic vision. Chart Aux. Lens Polar ① Open the both eyes. Procedure ② Place the polarizing filters before the eyes, 135 degree on the right and 45 degree on the left. ③ Ask the patient if the which bars(which symbols) are distinguished in depth.
--------------------------------------------------------------------------------------------------------------------- CDC-1 49 10. Maintenance 10.1. Replacement battery ① Slide open the battery cover of remote controller. ② Replace old battery to the new one and close cover. NOTE Please make sure the direction of (+), (-). Use battery LR6(AA) 1.5V . Battery Cover Battery 2ea LR6(AA)1.5V 10.2. Cleaning ① Sweep the outer surface and front window with soft fabric material.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 11. Trouble Shooting 11.1. Pressed power switch but the screen doesn’t work ① Check DC adapter cable to the device. When the cable is not completely pluged in, it doesn’t turn on. ② Check AC cable is pluged on power outlet. Check power outlet swtich if it has one.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 51 11.5. Visual acuity test results in overcorrection or undercorrection ① The test distance could be changed. Measure the test distance and adjust it to within the specification of this device. 11.6. Red/Green test is overcorrection or undercorrection ① When it is possible to adjust the brightness of inspection room. Adjust it properly.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 12.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User 53 13. Product Specification LCD Type Color TFT-LCD Resolution 800x3(RGB) x 480 White Luminance 200+-20 Chart window size 178*130 DC Adapter Input:100-250 V~, 1.5-0.75 A, 50-60 Hz Output:12V 5A Power Consumption 12.5W Max Size 640(L)*580(W)*780(H) Weight 22kg Test Distance 0.85m +- 0.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Masking Filter ▪ Dot, Row, Column ▪ Red/Green Filter Software version V1.0.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 55 14. EMC information Manufacturer announcement – electromagnetic waves trouble Electromagnetic waves trouble CDC-1 should be used in the below mentioned electromagnetic wave environment. CDC-1 purchaser or user needs to confirm whether CVS is used in this type of environment.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Electromagnetic waves tolerance CVS is to be used in the below mentioned electromagnetic wave environment. CVS purchaser or user needs to confirm whether CVS issued at this environment.
--------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 57 15. Service Information How to contact service: If there are any problems with the equipment, please follow the steps below: ◼ Refer to the section 11, according to the problem that you are encountered. And then follow the suggested sequences. ◼ If the problem persists, please contact the local distributor in your province or country at first.
CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Revision History Date 2021.09 2022.6.28 Version Content V1.0 First Issue V1.1 Adding explanation of symbols, applied standardand, EMC information, update EU Rep. address.
