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b. Keratometry

[mm/D]: Form of displaying result of keratometry

[mm R1]: Radius of curvature on minimum meridian
[R2]: Radius of curvature on maximum meridian
[AX]: Axis on maximum meridian
[D K1]: Refractive power on minimum meridian
[K2]: Refractive power on maximum meridian
[AX]: Axis on minimum meridian
[AVE AR]: Average radius of curvature
[CY]: Corneal astigmatism
[AX]: Axis of corneal astigmatism

[INC-K]: Increment of corneal power and astigmatism
[INDEX]: Corneal equivalent refractive index

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AKR300 - Auto Kerato Refractometer > V3 - 04-2020

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Summary of Contents for AKR 300

Page 1: ...USER MANUAL ...

Page 2: ...e 30 5 Peripheral keratometry K P mode 30 VII OTHER MODES 33 1 Measuring cornea diameter SIZE mode 34 2 Observe image obtained by retroillumination ILLUM mode 36 3 Display mode 40 4 Setup mode 41 a Refractometry 41 b Keratometry 43 c Patient number time and date 44 d Print format 45 e Customize measuring modes AutoStart etc 46 f Communication 47 g Messages for internal printer 48 h Adjust brightne...

Page 3: ...ent 53 IX CLASSIFICATIONS AND SPECIFICATIONS 54 1 Classifications 55 2 Specifications 55 a Refractometry 55 b Keratometry 55 c Environmental requirements 55 X COMPONENTS 57 1 Components 58 2 Optional accessories 58 XI QR CODE 59 USER MANUAL CONTENTS 3 AKR300 Auto Kerato Refractometer V3 04 2020 ...

Page 4: ...I INTRODUCTION ...

Page 5: ...quipment unless otherwise specified in the manual If such changes or modifications should be made you could be required to stop operation of the equipment ESSILOR INSTRUMENTS is not liable for any consequences linked to this product modification This product is compliant with marking This instrument complies with regulation 2017 745 UE This product is a class I medical device according to rule 13 ...

Page 6: ...ts to which the medical device can be safely exposed Indicates the hygrometry limits to which the medical device can be safely exposed Indicates the air pressure limits to which the medical device can be safely exposed Fragile Handle with care This side up carton box orientation Do not use hook for handling c Disposal Instructions for the disposal of the instrument in accordance with Directives 20...

Page 7: ...te Otherwise it may result in fire or electric shock Warning Be sure to turn OFF the power switch before connecting or disconnecting the cables Also do not handle them with wet hands Otherwise you may get an electric shock that may result in death or serious injury Warning Never disassemble or modify this instrument because it may result in fire or electric shock Also since this instrument incorpo...

Page 8: ...r the device because that may increase the emission of electromagnetic waves from the device or the system and decrease the immunity of the device to electromagnetic disturbance Caution Do not position the equipment to make it difficult to operate the disconnection device Appliance coupler or separable plug Caution Do not place the multiple socket outlets for AKR300 system on the floor in order to...

Page 9: ...II FEATURES ...

Page 10: ...ed 5 Customized specifications You can change the measurement modes delete unnecessary modes and or change order for printing results 6 User friendly operation features Depending on your convenience you can use the touch and the button 7 Easy connection with other equipments This instrument is designed to connect other equipments using RS232 or USB communication 8 External VGA monitor display supp...

Page 11: ...III NOTES FOR USING THE INSTRUMENT ...

Page 12: ...e examinee side If it is stained with other substance it may effect on error or inaccurate measurements 6 Don t press the Touch button on LCD monitor by nail or sharp object It may make scratch on the surface of LCD 7 Disconnect the power supply and consult the dealer in case there is smoke strange odor or noise on working 8 Don t use organic solution such as alcohol thinner benzene etc to clean t...

Page 13: ...IV DESCRIPTION ...

Page 14: ...tor Monitor that displays measurement and SET modes displays 4 Printer Print the measured result 5 Stage holding lever Holds the movement of stage sliding table 6 Operation lever Use this lever for alignment and focusing 7 Chinrest lever Align the height of chinrest up and down 8 Measuring button Press this button for measurement USER MANUAL DESCRIPTION AKR300 Auto Kerato Refractometer V3 04 2020 ...

Page 15: ...aminee s chin on this rest If you want to connect the input output signal ports and other devices that must meet IEC standards IEC62368 1 IT equipment IEC60601 medical equipment If in doubt should contact ESSILOR INSTRUMENTS or your authorized distributor The materials composed of the parts that contact the patient during measurement are as follows Do as much as possible to avoid contact Forehead ...

Page 16: ... Display Press this button in order to enter Display mode where you can see measurement data stored in memory 7 Press this button to clear all stored data in memory 8 Setup Press this button in order to enter Setup mode where you change all the settings about measurements printouts etc 9 CYL Press this button in order to change CYL form 10 Size Press this button in order to enter Size mode where y...

Page 17: ...V PRACTICING THROUGH MODEL EYE ...

Page 18: ... one is displayed 6 Adjust the position and focus on the model eye 1 Outer alignment mark 2 Mire image 3 Inner alignment mark Looking at the monitor incline the operation lever toward the model eye until a bright dot appears near the inner alignment mark Place the bright dot in the center of inner alignment mark If position cannot be adjusted just by inclining the operation lever slide the lever i...

Page 19: ...nel Adjust the position and focus on the model eye like the procedure 6 at previous page When the bright dot enters the inner alignment mark and model eye is in focus properly measurement starts automatically Execute the procedures c of manual measurement Continuous measurement starts automatically and will be performed 3 times or 5 times See chapter VII Other modes Setup mode USER MANUAL PRACTICI...

Page 20: ...VI MEASUREMENT ...

Page 21: ...al object has entered through an opening 3 When the product has been dropped or its housing damaged Relation between buttons and modes LiveREF button will be enabled at K R mode and REF mode only If LiveREF button is pressed LiveREF measurement will be performed and pressed again to render the basic measurement 1 Continuous keratometry and refractometry K R mode In the K R mode refractometry is au...

Page 22: ...lace your hand or fingers between the stage and base Also ensure that the examinee does not place his her hand or fingers there either Otherwise hand or fingers may be hurt Slide the operation lever to the left so that the right eye of the examinee is displayed on the monitor Ask the examinee to look at the red roof in the center of the scene eye fixation target Looking at the monitor check that i...

Page 23: ...e measuring button is kept pressed 1 The newest measured results will be displayed on the monitor 2 In case of the continuous measurement the result of previous measurement will be displayed 3 If you change setting at PAGE 1 of Setup mode you can select the vertex distance 4 If you change setting at PAGE 1 of Setup mode you can change display format of CYL value 5 When measured results are display...

Page 24: ...eliability of the measurement with LiveREF switch turned ON may be low Repeated measurement Measurement could be repeatedly performed if necessary The newest result will be displayed on the monitor whenever measured Maximum of 10 newest data items for both right and left eyes will be stored in memory except error data And those data can be showed in the Display mode window USER MANUAL MEASUREMENT ...

Page 25: ...he highest brightness the instrument is capable of delivering including the highest brightness achievable if over voltage is provided Detailed radiation information at normal usage of this instrument is like bellows 1 Keratometry 770nm LED type IWL BR30F Output 0 03 mW cm Group 1 limit 20mW cm for unweighted corneal and lenticular infrared radiation irradiance EIR CL wavelength of 770 to 2500nm ac...

Page 26: ...F is displayed on the right side of the display Follow the same procedure no 2 of the continuous keratometry and refractometry K R mode Perform alignment and focusing Align the pupil and alignment marks and focus on the mire image by using the operation lever Measurement Press the measuring button Measurement will be continuously performed when the measuring button is kept pressed If you change se...

Page 27: ...nea after surgery If error occurs or the measurement value is instable during the REF measurement follow as the below instructions Click the LiveREF button then REF image is shown on the monitor Make the six circles seen clearly by moving the operation lever Measure the REF by clicking the measurement button 1 LiveREF button 2 REF image USER MANUAL MEASUREMENT 27 AKR300 Auto Kerato Refractometer V...

Page 28: ...KER is displayed on the right side of the display Follow the same procedure 2 and 3 of the continuous keratometry and refractometry K R mode Measurement Press the measuring button Measurement will be continuously performed when the measuring button is kept pressed The measured results will be displayed on the monitor In case of the continuous measurement previous measured result will be displayed ...

Page 29: ...e same procedure 5 7 of the continuous keratometry and refractometry K R mode Example of printout Confidence of result Level Quality A B C D E Hight Low USER MANUAL MEASUREMENT 29 AKR300 Auto Kerato Refractometer V3 04 2020 ...

Page 30: ...ehind the contact lens Attach the test model eye Remove the chinrest paper Fix the model eye attached with contact lens using pin Place the contact lens to face the measurement window Perform alignment and focusing Align alignment marks and mire image Then focus on the mire image Measurement Press the measuring button Measured results will be displayed on the monitor 1 CLCB mode Print Press the Pr...

Page 31: ...ng and focusing are proper press measuring button 1 K P mode AUTO mode After each measurement the target at the position to be measured next blinks automatically on the monitor Each time have the examinee look at the lamp perform alignment and focusing and then measure If the center area has not been measured yet the target on the left side of the word CEN on the monitor will be blink Have the exa...

Page 32: ...ure the other eye Measure the other eye in the same manner Example of printout Right Eye Left Eye Symbol 0 180 NAS 45 135 N S 90 90 SUP 135 45 T S 180 0 TEM 225 315 T I 270 270 INF 225 225 N I r m Radius of curvature on measured meridian EQ Quadrate of eccentricity on measured meridian If the peripheral radius of curvature is larger than the center sign will be displayed If it is smaller sign will...

Page 33: ...VII OTHER MODES ...

Page 34: ...on in order to go out Size mode 1 Mode Change the mode CORNEAL SIZE PUPIL SIZE PD 2 Exit Exit of the Size mode 3 Clear Unfreeze the image and delete the results Positioning and focusing Ask the examinee to look at the red roof of the eye fixation target Control operation lever to align the pupil between the two vertical bars If the diameter of contact lens is going to be measured focus on the edge...

Page 35: ... value will be displayed on the monitor When you press the measuring button it will save the measured value 1 Corneal size mm PUPIL SIZE measurement Press the Mode button to select Pupil size mode Press the measuring button to pause the window If the frozen image is not clear you can unfreeze the image by pressing the CAM button To move the vertical bar by pressing the button or button USER MANUAL...

Page 36: ...upil diameter PD will be printed as each item 2 Observe image obtained by retroillumination ILLUM mode By directing a light into the pupil you can observe the condition of cataract or scratches on contact lens on the monitor in ILLUM mode Maximum of ten images for each eye can be displayed and stored in one display You can select an image and display it in a magnified size You can upload an image ...

Page 37: ...Monitor amount of light 5 Ref Light source select 6 REF ILM TAG Light source 7 Clear Press Clear button to clear the image 8 Light for eye front illumination reflected from cornea 9 Light for retro illumination reflected from cornea 10 Display Press Display button to enter menu display 11 Sub number 12 Exit End of the Illum mode USER MANUAL OTHER MODES 37 AKR300 Auto Kerato Refractometer V3 04 202...

Page 38: ...layed in pressed button RED Light source for retroillumination ILM Light source for illumination eye front TAG Light source for illuminating internal eye fixation target Variable range 0 100 if it is set to 0 the light turns off Position the light for retroillumination reflected from cornea to a part that is not opaque by using the operation lever If the light is directed from the edge of the pupi...

Page 39: ... number 01 10 Displaying of stored image Press Disp button in observation display Images stored in memory will be displayed Menu Display 1 Images of eye 2 Serial number Sub number 3 Time of the selected image 4 End of the DISPLAY mode 5 RIGHT LEFT SIDE eye mode 6 Change images of eye When you press the image button selecting image will be displayed USER MANUAL OTHER MODES 39 AKR300 Auto Kerato Ref...

Page 40: ...red data maximum 10 data for each eye in memory can be displayed in this mode To enter Display mode press Disp button in the measurement mode Press Exit button in order to go out Display mode Press tab buttons on upper side of display Result of selected page will be displayed Press Print button to print the stored data Press Clear button to clear all stored data in memory USER MANUAL OTHER MODES A...

Page 41: ...P 4 Setup mode Change all the settings about measurements printouts etc Press Setup button in measurement mode PAGE 1 of Setup mode will be displayed Press End button in order to return to measurement mode a Refractometry USER MANUAL OTHER MODES 41 AKR300 Auto Kerato Refractometer V3 04 2020 ...

Page 42: ...n and the content will be changed There are some contents to be changed in the other way And such procedures will be instructed under the description of each item How to enter the measurement mode Press End button to quit the Setup mode and enter the measurement mode Items VD Vertex distance CYL Cylinder form INC R Increment of sphere and cylinder D SFT Diopter shift of sphere Press INC or DEC but...

Page 43: ...meridian D K1 Refractive power on minimum meridian K2 Refractive power on maximum meridian AX Axis on minimum meridian AVE AR Average radius of curvature CY Corneal astigmatism AX Axis of corneal astigmatism INC K Increment of corneal power and astigmatism INDEX Corneal equivalent refractive index USER MANUAL OTHER MODES 43 AKR300 Auto Kerato Refractometer V3 04 2020 ...

Page 44: ...umber to be decreased or increased by 1 Pressing Input button enables you input number from dialog box DATE Time and date Pressing DEC or INC button renders the related item to be decreased or increased by 1 Year 2001 2099 Month 01 12 Day 01 31 Hour 00 23 Minutes 00 59 ORDER Order of displaying the date USER MANUAL OTHER MODES AKR300 Auto Kerato Refractometer V3 04 2020 44 ...

Page 45: ...d K PRT Result of Keratometry to be printed out ALL Maximum of the 10 newest measurements and an average value for each eye AVE Average values only OFF Not printed EYE A sketch of eyeball and refraction diagram to the results of refractometry are printed ORDER Order of displaying the date TYPE Print economy mode USER MANUAL OTHER MODES 45 AKR300 Auto Kerato Refractometer V3 04 2020 ...

Page 46: ...LBC K P and delete unnecessary modes 1 First mode that is displayed when power is turned ON It cannot be set to OFF 2 5 Second modes and after Assign first measurement mode and after If you want to delete unnecessary modes delete from last 5th one USER MANUAL OTHER MODES AKR300 Auto Kerato Refractometer V3 04 2020 46 ...

Page 47: ... Disable power save function 5 Enter power save function if there is on operation by operator about 5 minutes 10 Enter power save function if there is on operation by operator about 10 minutes 30 Enter power save function if there is on operation by operator about 30 minutes f Communication Items FMT RS232 data format PDR 7000 APH550 PAV 6000 PAV 6100 CANON RK RT 2100 RT 5100 VDR 2400 PC BPS RS 23...

Page 48: ...on to change the row of the blinking cursor Pressing or button yields the right and left change of the position of the cursor Input of messages Press any one of alphanumeric buttons to add character in the position of the blinking cursor Deletion of messages If you press the Del button the character of blinking cursor will be deleted If you press the button the character in front of the blinking c...

Page 49: ...ress BRIGHT or BRIGHT button to adjust the brightness of monitor 0 17 i Load default system variable If you press the LOAD DEFAULT SYSVAR button the system variable will be initialized USER MANUAL OTHER MODES 49 AKR300 Auto Kerato Refractometer V3 04 2020 ...

Page 50: ...VIII SELF INSPECTION AND MAINTENANCE ...

Page 51: ... fingers and measure again When the pupil is smaller than the outer alignment mark The minimum pupil diameter that can be measured is 2 0 mm Although it is possible to measure in the bright place don t expose examinee s eyes to the direct sunlight or too bright indoor lights to prevent the contraction of the pupil When the examinee has some illness like cataract Observe the eye in REF mode If cata...

Page 52: ...tely 2 cm for initializing paper settings It takes about 3 seconds to complete 3 Chinrest paper replacement 1 Pull out the two pins on the chinrest 2 Insert the pins into the holes on the chinrest paper More than 50 sheets of paper can be attached 3 Insert the pins straight into the holes on the chinrest 4 Fuses replacement 1 Turn off the power 2 Remove the power cord from the electrical inlet 3 I...

Page 53: ...l Number 7 digit characters indicated on the name plate Phenomenon In detail Serial number b Disposal of the instrument Caution This instrument incorporates a lithium battery which may pollute the environment if the instrument is abandoned Please ask a professional waste disposal company to handle disposal or contact ESSILOR INSTRUMENTS representative or distributor before disposing of the instrum...

Page 54: ...IX CLASSIFICATIONS AND SPECIFICATIONS ...

Page 55: ...mm Minimum Pupil Diameter Ø 2 0 mm b Keratometry Radius of curvature 5 0 10 2 mm Increments 0 01 mm Corneal Power 33 00 67 50 D when cornea equivalent refractive index is 1 3375 Increments selectable from 0 05 0 12 0 25 D Corneal astigmatism 0 00 15 00 D Increments selectable from 0 05 0 12 0 25 D Axis 1 180 Increments 1 Corneal Diameter 2 0 14 0 mm Increments 0 1 mm Memory of data 10 measured val...

Page 56: ...ly AC100 240V 50 60Hz Power consumption 40 60 VA Size Approximately 260 W x 500 D x 450 H mm Weight Approximately 20kg USER MANUAL CLASSIFICATIONS AND SPECIFICATIONS AKR300 Auto Kerato Refractometer V3 04 2020 56 ...

Page 57: ...X COMPONENTS ...

Page 58: ...1 Power supply cable 1 Test model eye 1 Chinrest paper about 100 sheets Printing paper 2 rolls Dust cover 1 2 Optional accessories Chinrest paper 500 sheets Printing paper 10 rolls USER MANUAL COMPONENTS AKR300 Auto Kerato Refractometer V3 04 2020 58 ...

Page 59: ...XI QR CODE ...

Page 60: ...USER MANUAL QR CODE AKR300 Auto Kerato Refractometer V3 04 2020 60 ...

Page 61: ...USER MANUAL QR CODE 61 AKR300 Auto Kerato Refractometer V3 04 2020 ...

Page 62: ...USER MANUAL QR CODE AKR300 Auto Kerato Refractometer V3 04 2020 62 ...

Page 63: ...Essilor Instruments USA 8600 W Catalpa Avenue Suite 703 Chicago IL 60656 Phone 855 393 4647 Email info essilorinstrumentsusa com www essilorinstrumentsusa com ...

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