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Nidek Medical AR-1s Operator's Manual
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Nidek Medical AR-1s Operator's Manual

Nidek Medical AR-1s Operator's Manual

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AUTO REFRACTOMETER
AR-1s
OPERATOR'S MANUAL
Be sure to read the SOFTWARE LICENSE
AGREEMENT (page Ⅱ) before using this product.

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  • Page 1 AUTO REFRACTOMETER AR-1s OPERATOR’S MANUAL Be sure to read the SOFTWARE LICENSE AGREEMENT (page Ⅱ) before using this product.
  • Page 2 Original instructions NIDEK CO., LTD. : 34-14 Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, JAPAN (Manufacturer) Telephone: +81-533-67-6611 URL: https://www.nidek.com/ NIDEK INC. : 2040 Corporate Court, San Jose, CA 95131, U.S.A. (United States Agent) Telephone: +1-800-223-9044 (USA Only) URL: https://usa.nidek.com/ NIDEK S.A. : Ecoparc, rue Benjamin Franklin, 94370 Sucy En Brie, FRANCE (EU Authorized Representative) 2023-06-23...
  • Page 3 Before Use This Operator's Manual contains information necessary for the operation of the NIDEK AUTO REFRACTOMETER AR-1s. This manual includes operating procedures, safety precautions, specifications, and information about accessories and mainte- nance. This manual is necessary for proper use. Especially, the safety precautions and operating procedures must be thoroughly understood prior to the operation of the device.
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  • Page 7 Table of Contents 1. SAFETY PRECAUTIONS ....... 1 1.1 For Safe Use - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -1 1.2 Usage Precautions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2...
  • Page 8 3.10 Summary Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 60 3.11 Operation when Peripheral Devices are Connected - - - - - - - - - - - - - - - - - - - - 62 3.11.1 Device connecting procedure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 63...
  • Page 9 SAFETY PRECAUTIONS For Safe Use BEFORE USE, READ THIS MANUAL. The safety precautions and operating procedures must be thoroughly understood prior to operation of the device. The device complies with ISO 10342 subclause 4: 2010 (Ophthalmic instruments - Eye Refractometers). The dioptric powers are indicated with reference wavelength λd = 587.56 In this manual, signal words are used to designate the degree or level of safety alert- ing.
  • Page 10 SAFETY PRECAUTIONS: Usage Precautions Usage Precautions Before use WARNING • If any serious device-related incident occurs, report it to NIDEK and the competent authority in the country where the user or patient, or both reside. • Connect the power plug to a grounded outlet. Electric shock or fire may occur in the event of malfunction or power leakage.
  • Page 11 SAFETY PRECAUTIONS: Usage Precautions CAUTION • Avoid installing the device where it is exposed to direct air-conditioning flow. Changes in temperature may result in condensation inside the device or adversely affect measure- ments. • Be sure to use a (HOSPITAL GRADE) power outlet which meets the power specification require- ments.
  • Page 12 SAFETY PRECAUTIONS: Usage Precautions During use CAUTION • Before use, perform visual and operation checks. If abnormal conditions are encountered, stop using the device. If the device is used under abnormal conditions, intended results may not occur. Also unanticipated mal- functions or health hazards may occur due to improper measurement.
  • Page 13 SAFETY PRECAUTIONS: Usage Precautions CAUTION • Do not perform servicing or maintenance on the device during use. • This device is classified as Group 1 set by ISO 15004-2:2007 Light Hazard and conforms to the standard. • Use devices that comply with IEC 60601-1 in the patient environment.
  • Page 14 SAFETY PRECAUTIONS: Usage Precautions Maintenance CAUTION • To ensure the continued safe use of the device, it is recommended that the manager of this device make sure that maintenance and preventive inspection (and calibration if necessary) are performed at least once a year.
  • Page 15 SAFETY PRECAUTIONS: Labels and Symbols Labels and Symbols  To call attention to users, labels and indications are provided on the device. If labels are peeling off, characters are fading, or otherwise becoming illegible, contact NIDEK or your authorized distributor. Indicates that the operator is advised to refer to the related instructions in the operator’s manual.
  • Page 16 SAFETY PRECAUTIONS: Labels and Symbols...
  • Page 17 2.1.1 Intended use The AUTO REFRACTOMETER AR-1s is a medical device which measures objective and subjective refractive errors of the patient’s eye. This device also offers retroillumination mode for observing the condition of the ocular media, and measures the amplitude of accommodation.
  • Page 18 INTRODUCTION: Device Outline 2.1.4 Intended use environment Medical facility or optical store CAUTION • If the device is used outside the specified use location, intended performance and security level can- not be maintained. 2.1.5 Principles Objective refractive error measurement Fine measurement beams are projected on the fundus of the patient’s eye by a projecting optical system and then the ring image obtained from the reflected beams is used for computation to determine the refractive errors (SPH, CYL, AXIS) of the patient’s eye.
  • Page 19 INTRODUCTION: Configuration and Functions Configuration and Functions 2.2.1 Device configuration 6.5-inch color LCD. Pulling the bottom of the display panel provides an adjustable viewing angle. Function buttons Sets the device and switches the screen. Functions assigned to the function buttons are displayed by ...
  • Page 20 INTRODUCTION: Configuration and Functions Start button When the start button is pressed, measurement starts regardless of the alignment or focusing condi- tion. Joystick  Used for alignment and focusing. (page 24) Eye Care card slot  An Eye Care card is inserted here. (page 28) Measuring unit Cover open lever...
  • Page 21 INTRODUCTION: Configuration and Functions Forehead rest Measuring window Chinrest Eye level marker The height of the chinrest should be adjusted so that the patient’s eye roughly aligns with this line. Chinrest up/down button ( When the chinrest is at the highest (or lowest) mechanical limit, the limit indicator ) is dis- played on the screen.
  • Page 22 INTRODUCTION: Configuration and Functions CAUTION • Equipment connected to the analog or digital interfaces must be certified according to the represen- tative appropriate national standards (such as EN 60601-1 and IEC 60601-1). Furthermore, all con- figurations shall comply with the system standard IEC 60601-1. Anyone who connects additional equipment to the signal input part or signal output part configures a medical system, and is therefore responsible that the system complies with the requirements of the system standard IEC 60601-1.
  • Page 23 INTRODUCTION: Configuration and Functions 2.2.2 AR measurement screen description The screen for AR (refractive error) measurement is comprised of two pages. The pages differ only in the function icons displayed to the right of each screen. Patient’s eye (R/L) Function icons The functions assigned to the function buttons on the right and left sides of the screen are displayed as icons.
  • Page 24 INTRODUCTION: Configuration and Functions • With the parameter setting, the summary button can be displayed instead of the print button. Pressing the summary button displays the summary screen that shows various mea-  surement values at the same time. (page 60) Measured results display The latest measured results are displayed.
  • Page 25 INTRODUCTION: Configuration and Functions Indication icon An icon indicating the device or measurement status is displayed at the top of the screen. Cataract measure- Indicates that the eye has been measured in cataract measurement mode. ment mode icon Eye Care card icon Displayed when an Eye Care card is inserted.
  • Page 26 INTRODUCTION: Configuration and Functions 2.2.3 Other measurement screens Various measurements can be performed by switching from the AR measurement screen. Uncorrected visual acuity measurement screen (VA TEST) 0.25  0.32 To conduct the subjective uncorrected visual acuity test 0.63 (page 38) 1.25 Corrected visual acuity measurement screen (SUBJECT) 0.25...
  • Page 27 INTRODUCTION: Packed Contents Packed Contents  The following are included in the standard configuration. Check the contents before use. Part name Quantity Appearance Printer paper 3 rolls Chinrest paper 1 pack Fixing pins for chinrest paper 2 units Magnetic forehead rest pad (The magnetic forehead rest pad does 1 unit not come attached to the main body and...
  • Page 28 INTRODUCTION: Before First Use Before First Use  Place the device on a stable table and connect its power cord. Place the main body on a stable table. Pull the main unit fully to the side to which the device is to be laid down, lock the main unit to the base with the locking lever and lay the device down gently.
  • Page 29 INTRODUCTION: Before First Use Wait until the measurement screen appears without any operation. In a few seconds after the device is turned on, the initial screen appears and then the screen changes to the mea- surement screen. Initial screen Measurement screen •...
  • Page 30 INTRODUCTION: Before First Use...
  • Page 31 OPERATING PROCEDURE Operation Flow Device power ON “3.2 Measurement Method” (page 24) Turn on power to the device and change the parameter settings of the device if necessary. Prepare the patient. Measurement “3.3 AR (refractive error) Measurement” (page 32) “3.4 Uncorrected Visual Acuity Measurement (UCVA)” (page 38) “3.5 Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement)”...
  • Page 32 OPERATING PROCEDURE: Measurement Method Measurement Method Turn on ( ) the power switch. Wait until the screen switches to the measurement screen. When the device is turned on, the measuring unit makes small forward-backward, side-to-side move- ments for initialization of auto tracking. •...
  • Page 33 OPERATING PROCEDURE: Measurement Method Focusing in the forward- Auto Manual Manual backward direction Measurement starts automatically as soon as alignment and focusing become optimum. Auto shot Pressing the start button starts measurement. • Selectable contents by pressing the auto button differ depending on the “62. TRACKING SW” ...
  • Page 34 OPERATING PROCEDURE: Measurement Method • Reassure the patient before measurement by explaining the following. “This device measures your eye with infrared rays to find which kind of lens fits you. The infrared rays do no harm to your eyes.” Instruct the patient to remove their glasses or contact lenses and sit on the chair. Have the patient place their chin on the chinrest as far forward as possible with their forehead resting gently on the forehead rest.
  • Page 35 OPERATING PROCEDURE: Measurement Method Data is not printed. Pressing the print button saves data on the Eye Care card and exports data to the external connected devices.  Contents of printing “3.9 Measured Value Printing” (page 57) Data in the device is automatically erased when the next measurement begins. •...
  • Page 36 OPERATING PROCEDURE: Measurement Method 3.2.1 Eye Care card use AR-measured data saved on the optional Eye Care card can be transferred to the RT, PC, or such. Data is saved to the Eye Care card at the following times. Eye Care card is inserted before measurement. Saved upon printing.
  • Page 37 OPERATING PROCEDURE: Measurement Method Remove the Eye Care card. CAUTION • Be careful when handling the Eye Care card so that malfunction does not occur. Be sure not to eject the Eye Care card while it is being accessed (solid yellow display Never bend or damage the card.
  • Page 38 OPERATING PROCEDURE: Measurement Method 3.2.2 Checking the measuring window cleanliness at device start-up It is possible to set the parameter whether or not to check the cleanliness of the measuring window before measurement. Window check contents at device start-up differ depending on the “61. WINDOW CHECK” parameter setting.
  • Page 39 OPERATING PROCEDURE: Measurement Method 3.2.3 Device shutdown Normal shutdown To finish measurement, turn off ( ) the power switch. Power may be turned off with any screen displayed. Check the measuring window and clean the window if necessary.  (page 92) Clean the forehead rest and chinrest and place the supplied dust cover on the device.
  • Page 40 OPERATING PROCEDURE: AR (refractive error) Measurement AR (refractive error) Measurement  Perform AR (refractive error) measurement. Give the following instructions to the patient. “Look through the measuring window. You will see the picture of a balloon. Look at the center of it without straining”. Manipulate the joystick to display the patient’s eye on the screen.
  • Page 41 OPERATING PROCEDURE: AR (refractive error) Measurement ● Focusing indicator display For manual focusing, refer to the focusing indicator ( ) and manipulate the joystick forward and backward for the optimum condition. Too close to the patient’s eye Optimum focusing condition Too far from the patient’s eye •...
  • Page 42 OPERATING PROCEDURE: AR (refractive error) Measurement • When an error or error data appears, the cause may be one of the following. If errors appear again after repeating measurement, check whether: • The patient blinked during measurement. • The eyelid or eyelashes are on the minimum pupil diameter mark during AR measurement. •...
  • Page 43 OPERATING PROCEDURE: AR (refractive error) Measurement ● Full screen display of measurement ring image A thumbnail of the measurement ring image is displayed when AR measurement is complete. If necessary, press the ring image / parameter button to switch to the full screen display.
  • Page 44 OPERATING PROCEDURE: AR (refractive error) Measurement • Instruct the patient to close their eye before starting the next measurement. Let the eye rest to avoid measurement failure by blinking. 3.3.1 Error messages during AR measurement Error messages during AR measurement are displayed in the numeric fields of the measured values. Error messages during AR measurement Error message Details and remedies...
  • Page 45 OPERATING PROCEDURE: AR (refractive error) Measurement 3.3.2 Cataract measurement mode When measurement is not possible due to cataract or abnormal eyes during AR (refractive error) measurement, the device enters cataract measurement mode automatically. In cataract measurement mode, measurement conditions are changed so that measurement results can be easily obtained.
  • Page 46 OPERATING PROCEDURE: Uncorrected Visual Acuity Measurement (UCVA) Uncorrected Visual Acuity Measurement (UCVA)  Uncorrected visual acuity measurement can be performed after AR measurement. Hold down the VA button for about a second to display the uncorrected visual acuity measurement screen (VA TEST). A VA chart (VA 0.1 to 1.25) is presented to the patient.
  • Page 47 OPERATING PROCEDURE: Uncorrected Visual Acuity Measurement (UCVA) Ask the patient whether they can read the pre- 0.25 sented chart. 0.32 0.63 The presented chart is displayed on the screen. 1.25 According to the patient’s response, press the chart 0.25 0.32 button or chart down button to change 0.63...
  • Page 48 OPERATING PROCEDURE: Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement) Corrected Visual Acuity Measurement (Subjective Refractive Error Mea- surement)  Subjective refractive error measurement and corrected visual acuity measurement can be performed based on the AR-measured values (or large area measured values For the CYL and AXIS values, AR-measured values (or large area measured values) are used.
  • Page 49 OPERATING PROCEDURE: Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement) 3.5.1 Distance visual acuity measurement Press the VA button to display the corrected visual acuity measurement screen. The 0.8 VA chart is presented to the patient viewed with the corrective lens 0.25 0.32 selected according to the AR-measured...
  • Page 50 OPERATING PROCEDURE: Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement) Repeat Steps 3 to 4 to determine the limit of the VA value that the patient can read. To save the VA value lower than 0.1, press the chart up button with the VA chart set to 0.1.
  • Page 51 OPERATING PROCEDURE: Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement) Perform near visual acuity measurement if necessary.  “3.5.2 Near visual acuity measurement” (page 44) Switch the eye to be measured and perform corrected visual acuity measurement for the other eye in the same manner. •...
  • Page 52 OPERATING PROCEDURE: Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement) 3.5.2 Near visual acuity measurement Near visual acuity measurement with vision corrected for distance vision, addition power measure- ment required for prescription of glasses for near vision, and visual acuity measurement with addition power can be performed.
  • Page 53 OPERATING PROCEDURE: Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement) To return to the corrected visual acuity measurement screen, press the near button. Press the ADD button to display the addition 0.25 0.32 power measurement screen. 0.63 1.25 The addition power of 1.75 D is added as the default setting. Change the addition power if necessary.
  • Page 54 OPERATING PROCEDURE: Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement) Vision comparison function (during near visual acuity measurement) The vision of the near VA chart with the corrected distance values (or corrected near values with addi- tion power) and uncorrected vision (or vision corrected by LM data) are switched to check the vision difference.
  • Page 55 OPERATING PROCEDURE: Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement) 3.5.3 Contrast visual acuity / glare visual acuity measurement Reduced visual performance when a low contrast VA chart is viewed or dazzling light is shone to the eye can be checked. Perform distance visual acuity measurement.
  • Page 56 OPERATING PROCEDURE: Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement) After the contrast visual acuity measurement is complete, press the contrast/glare button to display the glare visual acuity measurement screen. “GLARE:ON” is displayed on the screen and a chart is presented to the patient with the right and left lamps illuminated.
  • Page 57 OPERATING PROCEDURE: Retroillumination Image Observation Retroillumination Image Observation  Whether opacity exists on crystalline lenses or vitreous body can be observed. CAUTION • Opacity indexes should be taken as a reference value. When images are captured under the following conditions, actual indexes may not be presented. •...
  • Page 58 OPERATING PROCEDURE: Retroillumination Image Observation When analysis is complete, the opacity indexes for the center (COI. H, COI. A) and periphery (POI) and a circle indicating the 3 mm range in diameter are displayed. Opacity size within a diameter of 3 mm of COI.
  • Page 59 OPERATING PROCEDURE: Accommodation Measurement Accommodation Measurement After AR measurement, press the accommodation measurement button to dis- play the accommodation measurement screen (ACCOMMODATION). The initial measurement conditions are “HOME (reference position) = SPH value” and “TPOS (initial position) = SPH value +0.50 D ”...
  • Page 60 OPERATING PROCEDURE: Accommodation Measurement Press the graph button to display the graph display screen. The detailed graph, accommodation , maximum&minimum AR-measured values, and maximum&minimum pupil size val- ues are displayed. The horizontal axis indicates the elapsed time in one-second increments. Press the graph button to return to the accommodation measurement screen.
  • Page 61 OPERATING PROCEDURE: Manual Measurement Manual Measurement  The Pupil Size (PS) and Pupillary Distance (PD) can be manually measured by looking at the eye image. Even if auto measurement is set, manual measurement is possible. • When PS (Pupil Size) measurement or PD (Pupillary Distance) has been both manually and auto- matically performed, the manually measured value is used.
  • Page 62 OPERATING PROCEDURE: Manual Measurement Press the right button or left button to align the guide lines on the pupil of the patient’s eye. The guide line to be aligned is displayed in pink. Press the down button to change the selected guide line. Press the start button to confirm the measurement.
  • Page 63 OPERATING PROCEDURE: Manual Measurement 3.8.2 PD (Pupillary Distance) measurement • In manual PD measurement, five measurements can be saved. The latest PD value is displayed on the measurement screen. The measured PD values (five measurements at the maximum) are printed on the printed results in the order measured. Press the PS/PD button to enter PD measure- ment mode.
  • Page 64 OPERATING PROCEDURE: Manual Measurement Press the return button to exit from PD mea- surement mode. The screen returns to the measurement screen. The measured PD is displayed on the screen indicating the completion of measurement. • When PD is measured with the “55. NEAR PD PRINT” parameter set to “YES”, the near PD is printed out along with the distance PD.
  • Page 65 OPERATING PROCEDURE: Measured Value Printing Measured Value Printing  Measured values are printed out by pressing the print button after measurement. The printing contents can be changed by parameter options “PRINT1” to “PRINT3”. Set the  parameters as necessary or desired. “4.6 Device Parameter Settings”...
  • Page 66 OPERATING PROCEDURE: Measured Value Printing ● Sample printout 2 Patient ID Patient ID scanned by the optional barcode scanner or magnetic card reader Vertex distance Near working distance AR-measured values (center) S: Spherical refractive error C: Cylindrical refractive error A: Cylinder axis Confidence index AR median values SE value...
  • Page 67 OPERATING PROCEDURE: Measured Value Printing ● Sample printout 3 Uncorrected VA values Subjective refractive error measured values An eye diagram is printed out depending on the “52. EYE PRINT” parameter setting. Corrected distance VA values Contrast VA values Glare VA values Near addition powers, near VA values, WD LM values These are values of the patient’s own glasses measured by a...
  • Page 68 OPERATING PROCEDURE: Summary Display 3.10 Summary Display Various measured values can be displayed at the same time on the summary screen. In addition, measured data can be deleted at the measurement item level. To print or export the measured values, press the print button in the summary screen.
  • Page 69 OPERATING PROCEDURE: Summary Display Prints the measured results. When there is no measured data, long press of the print button Print (for about 1 second) advances the paper. Switches the eye (with the cursor) between the right and left eyes. Right/Left Selects (with the cursor) the upper or lower measurement item.
  • Page 70 OPERATING PROCEDURE: Operation when Peripheral Devices are Connected 3.11 Operation when Peripheral Devices are Connected  The device can export data to an external device such as the NIDEK motorized refractor and PC. It can also import data from the NIDEK lensmeter. Connecting device Connection port Function...
  • Page 71 OPERATING PROCEDURE: Operation when Peripheral Devices are Connected 3.11.1 Device connecting procedure CAUTION • Before connecting a communication cable, be sure to turn off each device. Connecting the cable with the power on may cause malfunction. Connect the cable with the device on its side. Ensure that the plug is inserted into the connector in the proper orientation.
  • Page 72 OPERATING PROCEDURE: Operation when Peripheral Devices are Connected 3.11.2 Operating procedure ● Importing data from a lensmeter (LM) (RS-232C connection) AR-1s parameter setting NIDEK LM parameter setting 73. BAUD-RATE = 9600 Printer = AR print 74. BIT LENGTH = 8 RS-232C = NIDEK 76.
  • Page 73 OPERATING PROCEDURE: Operation when Peripheral Devices are Connected Place the scanner window over the barcode and press the trigger button. (Barcode scanner) When the barcode has been read successfully, the confirmation LED lights up. Swipe the card with the magnetic card reader. (Mag- netic card reader) A beep sounds and the green LED goes out.
  • Page 74 OPERATING PROCEDURE: Operation when Peripheral Devices are Connected...
  • Page 75 DEVICE SETTINGS AND MAINTE- NANCE Troubleshooting  Should the device function improperly, attempt to correct the problem according to the following table before contacting NIDEK or your authorized distributor. When Remedy • The power cord may not be correctly connected. Reconnect it securely.
  • Page 76 DEVICE SETTINGS AND MAINTENANCE: Troubleshooting When Remedy • The auto tracking function or auto shot function may not have been turned on. Turn them on with the auto button. • Room illumination may be reflecting on the cornea. Change the location and try measurement again. •...
  • Page 77 DEVICE SETTINGS AND MAINTENANCE: Error Messages and Remedies Error Messages and Remedies  If one of the following error codes is displayed on the screen or printed out, follow the suggestions in the cause and remedy column. The error code, detailed indications and serial number of your device are helpful for proper servicing. Error message Cause and remedy •...
  • Page 78 DEVICE SETTINGS AND MAINTENANCE: Error Messages and Remedies ● Network communication Error message Cause and remedy ERR700 • Error related to Windows file sharing SMB ERR • ERR703 Error related to the IC board NETWORK ERR IC was damaged by some cause such as electrostatic discharge. •...
  • Page 79 DEVICE SETTINGS AND MAINTENANCE: Printer Paper Replacement Printer Paper Replacement  When a red line appears along the edge of the printer paper, it means that the paper is running short. In such a case, stop using the printer and replace the printer paper with a new roll. CAUTION •...
  • Page 80 DEVICE SETTINGS AND MAINTENANCE: Chinrest Paper Attachment Chinrest Paper Attachment Remove the two fixing pins from the chinrest. Remove a suitable number of chinrest papers from the pack. An entire pack of chinrest paper cannot be attached. Attach a stack with a thickness of 6 mm of less. Pass the fixing pins through the chinrest paper stack.
  • Page 81 DEVICE SETTINGS AND MAINTENANCE: Forehead Rest Pad Replacement Forehead Rest Pad Replacement  Magnetic forehead rest pad (30611-1520) (*A) The forehead rest pad (made of ABS resin) included standard configuration magnetically attachable. Attach or remove it in the orientation as shown to the right. ...
  • Page 82 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings Device Parameter Settings 4.6.1 Setting parameters Various device parameter settings can be changed in the parameter setting screen (PARAMETER SETTING). Hold down the ring image / parameter button for about a second to display the parameter setting screen.
  • Page 83 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings Select the desired parameters in the parameter details screen and change the set- ting contents. • The program version of the device is displayed at the bottom right of the parameter setting screen. Parameter details screen operation Returns or advances the screen a single page.
  • Page 84 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings 4.6.2 Parameter tables • Underlined options indicate factory settings. ● AR (AR measurement) Parameter option Setting contents 1. STEP 0.01D / 0.12D / 0.25D (AR measurement incre- Selects the display increments of SPH or CYL for AR measurement. ments) 2.
  • Page 85 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings ● PRINT1 (Print setting 1) Parameter option Setting contents 31. PRINT MANUAL / AUTO / NO (Printing) MANUAL: Pressing the print button starts printing. AUTO: Printing starts automatically when measurement is complete. NO: Printing does not occur. (Data communication occurs.) 32.
  • Page 86 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings ● Sample printout of erroneous data When the “44. ERROR DATA” parameter is set to “YES” and the measured results are erroneous, the measured values are displayed in yellow on the screen. In addition, the printed measured data is preceded by “Err”.
  • Page 87 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings Parameter option Setting contents 56. WORKING D. 35cm to 70cm (5 cm increments) (The default setting is “40cm”.) (Near working distance) 14inch to 28inch (2-inch increments) (The default setting is “16inch”.) Sets the near working distance referred to for calculation of near PD. The setting is also used as the near working distance during the vision comparison function.
  • Page 88 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings ● COMMUNICATION (RS-232C communication function) Parameter option Setting contents 71. I/F MODE NIDEK / NIDEK2 / NCP10 (Communication mode) Communication setting of connected device NIDEK: Communication with a NIDEK-brand product NIDEK2: Communication with a NIDEK-brand product (extended timeout period) NCP10: Communication with a NCP10-compliant device NIDEK2 is a communication mode whose timeout period is extended over that of the NIDEK setting.
  • Page 89 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings Parameter option Setting contents 92. SUBJECT CHART ALL / 0.1 / 0.25 / 0.32 / 0.4 / 0.5 / 0.63 / 0.8 / 1.0 / 1.25 (Corrected visual acuity ALL / 200 / 80 / 60 / 50 / 40 / 30 / 25 / 20 / 16 measurement chart) VA value of chart to be initially displayed for corrected visual acuity measurement of the new patient’s eye...
  • Page 90 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings -2.00 0.32 -2.25 to -3.00 0.25 -3.25 ≥ < 0.1 > 200 99. ADD SELECT 0.25D / 0.50D / 0.75D / 1.00D / 1.25D / 1.50D / 1.75D / 2.00D (Addition power) Selects the addition power added by pressing the ADD button in near vision measurement mode.
  • Page 91 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings ● NETWORK 1 (LAN communication function 1) Parameter option Setting contents 111. NETWORK NO / YES / ACK (Network connection) Sets whether to connect a network (LAN). NO: Network communication does not occur. YES: Network communication occurs.
  • Page 92 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings ● NETWORK 2 (LAN communication function 2) Parameter option Setting contents 121. RING IMAGE NO / LOW CONF / YES (Ring image export) Sets whether to export the image data (JPEG) of a ring image when LAN connec- tion is established.
  • Page 93 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings 4.6.3 Setting and confirming the network communication function (LAN) Set the “IP” through “117. FOLDER” parameters necessary for connection to a computer via a net- work (LAN) according to the procedure below. Setting “IP”, “MASK”, “GATE” The input procedure for the “IP”...
  • Page 94 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings Inputting “113. USER” to “117. FOLDER” The input procedure for the “113. USER” parameter is described below. The procedure for the “114. PASSWORD” to “117. FOLDER” parameters is the same. Press the up button or down button to select “113.
  • Page 95 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings Confirming network communication Confirm that network communication occurs properly. After connecting the device using a LAN cable, make sure that the PC to be connected is turned on. Press the TEST button to check network communica- tion.
  • Page 96 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings 4.6.4 Setting the date and time If the date and time of the printout are incorrect, set the correct date and time. • If the device has not been turned on for about 3 weeks, the date and time may become incorrect. Battery recharging This device uses a rechargeable lithium battery for the date and time display function.
  • Page 97 DEVICE SETTINGS AND MAINTENANCE: Device Parameter Settings 4.6.5 Entering comments Comments to be printed can be changed. (The default setting is “NIDEK AR-1s”.) Select “COMMENT SET” on the parameter setting screen and press the enter button. The COMMENT SET screen is displayed.
  • Page 98 DEVICE SETTINGS AND MAINTENANCE: AR Measurement Accuracy Check AR Measurement Accuracy Check  To check the accuracy of measured data, use the provided spherical model eye. Remove the two fixing pins and the stack of chinrest paper from the chinrest. Remove the cap from the spherical model eye and put the model eye on the chinrest with its lens toward the measuring window and then insert the fixing pins.
  • Page 99 DEVICE SETTINGS AND MAINTENANCE: AR Measurement Accuracy Check ● Values marked on the labels of the spherical model eye VD value Diopter (Unit: D) • When the vertex distance is set to a value other than “12.00mm”, set the “2. VERTEX D.” parameter to “12.00mm”...
  • Page 100 DEVICE SETTINGS AND MAINTENANCE: Cleaning Cleaning  When the cover or panel of the device becomes dirty, clean it with a soft cloth. For severe stains, soak the cloth in a neutral detergent, wiring well, and wipe. Finally dry with a soft, dry cloth. CAUTION •...
  • Page 101 DEVICE SETTINGS AND MAINTENANCE: Cleaning Check if the window is cleaned using a penlight. If soiled areas remain, clean the window again with new cleaning paper. • When the “61. WINDOW CHECK” parameter is set to “YES” or “DAY”, the measuring window is checked for cleanliness at device start-up.
  • Page 102 DEVICE SETTINGS AND MAINTENANCE: Consumable List Consumable List Part name Part number Note Width 58 mm, Length 25 m Printer paper 80620-00001 1 pack Chinrest paper 32903-M047 1 unit Magnetic forehead rest 30611-1520 Made of ABS resin 1 unit Forehead rest pad 15411-M752 Made of polyester elastomer...
  • Page 103 SPECIFICATIONS AND TECHNICAL INFORMATION Specifications • Objective refractive error Sphere -30.00 to +25.00 D (VD = 12 mm) (0.01/0.12/0.25 D incre- measurement ments) Cylinder 0 to ±12.00 D (0.01/0.12/0.25 D increments) Axis 0 to 180° (1°/5° increments) Minimum measurable pupil 2 mm in diameter diameter Accuracy: The accuracy specifications are based on the results of eye model testing...
  • Page 104 SPECIFICATIONS AND TECHNICAL INFORMATION: Specifications • Dimensions and mass Dimensions 260 (W) × 495 (D) × 457 (H) mm Mass 20 kg • Environmental condi- Temperature 10 to 35°C (50 to 95°F) tions (during use) Humidity 30 to 90% (Non-condensing) Atmospheric pressure 800 to 1,060 hPa Installation location...
  • Page 105 SPECIFICATIONS AND TECHNICAL INFORMATION: Glossary and Abbreviations Glossary and Abbreviations  The following terms and abbreviations are used in the device and operator's manual. Glossary Term Details AI mode For AR measurement, measurement automatically finishes after the specified number of measurements if the data is stable without variations. If unstable data is included, two additional measurements are taken and then measurement finishes.
  • Page 106 SPECIFICATIONS AND TECHNICAL INFORMATION: Glossary and Abbreviations Emmetropia Myopia Hyperopia Astigmatism Simple myopic astigma- Simple hyperopic astig- Myopic astigmatism Hyperopic astigmatism tism matism Term Details Abbreviation of Pupil Size SE (Spherical Equivalent) The value that is 1/2 of the cylindrical error added to the spherical error. Cal- value culated for the AR median values (the latest values when the median values have not been obtained), subjective measured values, and CL conversion...
  • Page 107 SPECIFICATIONS AND TECHNICAL INFORMATION: EMC (Electromagnetic Compatibility) EMC (Electromagnetic Compatibility) The device is suitable for use in stores and hospitals except for near active HF surgical equipment and RF shielded rooms with an ME system for magnetic resonance imaging, where the intensity of electro- magnetic disturbances is high, electrophysiology laboratories, or areas where short-wave therapy equipment is used.
  • Page 108 SPECIFICATIONS AND TECHNICAL INFORMATION: EMC (Electromagnetic Compatibility) Compliance for Emission Standard Phenomenon Product family standard Compliance Group 1 Conducted and radiated RF emissions CISPR 11 Class B Harmonic distortion IEC 61000-3-2 Voltage fluctuations and flicker IEC 61000-3-3 For the regions where the rated voltage is 220 V to 240 V, this device complies with this standard. For the regions where the rated voltage (line to neutral) is 220 V to 250 V, this device complies with this standard.
  • Page 109 SPECIFICATIONS AND TECHNICAL INFORMATION: EMC (Electromagnetic Compatibility) Compliance for Standard Immunity Phenomenon Basic EMC standard Immunity test levels ±8 kV contact Electrostatic discharge IEC 61000-4-2 ±2 kV, ±4 kV, ±8 kV, ±15 kV air 10 V/m Radiated RF IEC 61000-4-3 80 MHz - 2.7 GHz electromagnetic field 80% AM at 1 kHz...
  • Page 110 SPECIFICATIONS AND TECHNICAL INFORMATION: EMC (Electromagnetic Compatibility)