Potec PRK-6000 Operation Manual
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Potec PRK-6000 Operation Manual

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OPERATION MANUAL
AUTO REF-KERATOMETER PRK-6000
Revision 1.1
www.potec.biz
Before using the instrument, be sure to read this manual thoroughly.

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Summary of Contents for Potec PRK-6000

  • Page 1 OPERATION MANUAL AUTO REF-KERATOMETER PRK-6000 Revision 1.1 www.potec.biz Before using the instrument, be sure to read this manual thoroughly.

  • Page 3: Important Notice

    POTEC as repairable by service personnel. POTEC reserves the right to make changes in its products or product specifications at any time and without prior notice, and is not required to update this documentation to reflect such changes.

  • Page 4: Safety Information

    PRK-6000 Operation Manual SAFETY INFORMATION Accessory equipment connected to the analog and digital interfaces must be certificated according to the respective IEC standards (e.g. IEC 60950-1 for data processing equipment and IEC 60601-1 for medical equipment). Furthermore all configurations shall comply with the system standard EN 60601-1:2006, Clause 16.
  • Page 5 PRK-6000 Operation Manual Symbols marked on the Instrument Symbol Description TYPE B EQUIPMENT Alternating current Protective earth (ground) Refer to operating instructions Off (power: disconnect to the mains) On (power: connection to the mains) Do not place your hand or fingers between the stage and base. Also ensure that the examinee does not place his/her hand or fingers there either.
  • Page 6 PRK-6000 Operation Manual Only operate the instrument with the power supply indicated on the WARNING rating plate. Otherwise, it may result in fire or electric shock. Be sure to turn OFF the power switch before connecting or WARNING disconnecting the cables. Also, do not handle them with wet hands.
  • Page 7 Do not position the equipment to make it difficult to operate the CAUTION disconnection device. (Appliance coupler or separable plug) Do not placed the multiple socket-outlet for PRK-6000 system on the CAUTION floor in order to prevent liquid penetration and damage to the product.

  • Page 8: Table Of Contents

    PRK-6000 Operation Manual CONTENTS IMPORTANT NOTICE .............................. i SAFETY INFORMATION ............................ii CONTENTS ................................vi Features ................................1 Notes for Using the Instrument ........................2 Description ............................... 3 Main Unit ..............................3 Operation Panel ............................. 5 Practicing through Model Eye .......................... 6 Measurement ..............................

  • Page 9: Features

    Wide Dioptric Measurement Range Because the PRK-6000 covers a wide measurement range, from –25D to +22D, even an examinee with strong myopia can be measured. More Accurate Measurement You can measure more accurately because foggy method of the eye fixation target makes the examinee’s eye comfortable.

  • Page 10: Notes For Using The Instrument

    Don’t use organic solution such as alcohol, thinner, benzene, etc. to clean the surface of this instrument. It may damage the instrument. When moving this PRK-6000, fix the stage by using stage holding knob, always check if the power supply is off, and then lift the bottom of the unit with both hands.

  • Page 11: Description

    PRK-6000 Operation Manual 3. Description 3.1 Main Unit ① ② ③ ⑤ ⑥ ⑦ ④ ⑧ Name Function ① Measurement Head Unit that performs measurement. Align the height of the examinee’s eye with this mark by adjusting ② Height Adjustment mark the height of chin rest.
  • Page 12 Place the examinee’s chin on this rest If you want to connect the input / output signal ports and other devices that must meet IEC standards (IEC60950 IT equipment, IEC60601 medical equipment) If in doubt should contact POTEC or your authorized distributor. - 4 -...

  • Page 13: Operation Panel

    PRK-6000 Operation Manual 3.2 Operation Panel CHINREST ▲/▼ Touch Button (virtual button by monitor & touch screen) These switches are for rasing/lowering the chin rest. Press “ ” ▲ CHINREST ▲/▼ switch in order to raise and “ ” switch to lower the chin rest.

  • Page 14: Practicing Through Model Eye

    PRK-6000 Operation Manual 4. Practicing through Model Eye Practice measurement by using the accessory Test Model Eye before doing the actual measurement. Turn ON the power Turn ON the power switch of the instrument. Attach the model eye Remove the chin rest paper and align the holes on the base of the model eye with the holes on the chin rest.
  • Page 15 PRK-6000 Operation Manual Adjust the position and focus on the model eye Outer Alignment mark Mire image 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.

  • Page 16: Measurement

    PRK-6000 Operation Manual 5. Measurement Should any of the following occur, immediately turn OFF the power switch, unplug the power cable from the AC outlet, and contact the WARNING dealer or the agent who/where you purchase this instrument. When there is smoke, strange odor or abnormal sound.

  • Page 17: Continuous Keratometry & Refractometry [K/R Mode]

    PRK-6000 Operation Manual 5.1 Continuous Keratometry & Refractometry [K/R Mode] In the K/R mode, refractometry is automatically performed after keratometry. Enter K/R Mode Press MODE button Press K/R MODE button Adjust height of examinee’s eye. Ensure that the examinee has not placed his/her hand or fingers CAUTION under the chin rest.
  • Page 18 PRK-6000 Operation Manual Perform alignment and Focusing Do not place your hand or fingers between the stage and base. Also CAUTION ensure that the examinee does not place his/her hand or fingers there either. Otherwise, hand or fingers may be hurt.
  • Page 19 PRK-6000 Operation Manual Measurement Press the Measurement button. Measurement will be continuously performed when the Measurement button is kept pressed. The newest measured results will be displayed on the monitor. In case of the continuous measurement, the result of previous measurement will be displayed.
  • Page 20 PRK-6000 Operation Manual 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.
  • Page 21 PRK-6000 Operation Manual Print Press the Print button. The selected data in the SETUP mode will be printed.(See 6.4 (3) Print Format, Communication) Lift the printing paper from one side and give it a sharp tug to tear it off after printing is completed.

  • Page 22: Refractometry [Ref Mode]

    PRK-6000 Operation Manual 5.2 Refractometry [REF Mode] Only refractometry can be performed in the REF mode. Enter REF Mode Press MODE button Press REF MODE button Follow the same procedure (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.
  • Page 23 PRK-6000 Operation Manual Follow the same procedure (5)~(7) of the Continuous Keratometry and Refractometry [K/R Mode]. < example of printout > Confidence of Result Level Quality (High) ↕ (Low) - 15 -...

  • Page 24: Keratometry [Ker Mode]

    PRK-6000 Operation Manual 5.3 Keratometry [KER Mode] Only the radius of curvature of the cornea can be measured in KER Mode. NOTES: Don’t measure the base curve of contact lens in this mode. Measurement error will occur when it is measured in KER mode.
  • Page 25 PRK-6000 Operation Manual Follow the same procedure (5)~(7) of the Continuous Keratometry and Refractometry [K/R Mode]. < example of printout > Confidence of Result Level Quality (High) ↕ (Low) - 17 -...

  • Page 26: Contact Lens Base Curve Measurement [Clbc Mode]

    PRK-6000 Operation Manual 5.4 Contact Lens Base Curve Measurement [CLBC mode] Base curve (posterior curve) of hard contact lens can he measured in the CLBC Mode. Enter CLBC Mode Press MODE button Press CLBC MODE button. Attach Contact Lens. Put water in the concave section of contact lens holder at backside of the TEST Model Eye and place the contact lens on the holder with the concave surface facing upward.

  • Page 27: Peripheral Keratometry [K(P) Mode]

    PRK-6000 Operation Manual 5.5 Peripheral Keratometry [K(P) Mode] In K(P) Mode, peripheral corneal curvatures can be measured by having the examinee look at the peripheral eye fixation lamps. Measuring the corneal periphery will help you examine irregular astigmatism, and also determine a better fitting for a contact lens.
  • Page 28 PRK-6000 Operation Manual of the scenery, and measure. If “ERR” is displayed as a result of measuring the center, peripheral eye fixation lamp will not light until the center is measured properly. Change to MANU Mode as required. [MANU Mode] You can enter MANU Mode by pressing the touch screen.
  • Page 29 PRK-6000 Operation Manual < example of printout > Right Eye Left Eye Symbol 0’ 180’ 45’ 135’ 90’ 90’ 135’ 45’ 180’ 0’ 225’ 315’ 270’ 270’ 225’ 225’ r(m): Radius of curvature on measured meridian EQ: Quadrate of eccentricity on measured...

  • Page 30: Other Modes

    PRK-6000 Operation Manual 6. Other Modes 6.1 Measuring Cornea Diameter [SIZE Mode] Diameter of cornea can be measured in SIZE Mode for prescribing contact lens. The size of pupil can also be measured to see how much it is dilated, and the size of contact lens can be measured without having the examinee remove it.
  • Page 31 PRK-6000 Operation Manual Measurement Press the measurement button to pause the window. If the frozen image is not clear, you can unfreeze the image by pressing the MODE button. To move the vertical bars by pressing the AUTO button or DISPLAY button.
  • Page 32 PRK-6000 Operation Manual Select the Entry of measured value. Pressing the touch button at upper side of monitor renders to select “1” or “2”. In case there are some mistakes in the previous “1” measurement, “1” can be selected again.

  • Page 33: Observe Image Obtained By Retroillumination [Illum Mode]

    PRK-6000 Operation Manual 6.2 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 two images for each eye can be displayed and stored in one display.
  • Page 34 PRK-6000 Operation Manual Ready for Observation Ask the examinee to look at the red roof of the eye fixation target. See procedure (3) of the “5.1Continuous Keratometry and Refractometry [K/R Mode]” Observation Adjust the amount of light of each light source so the image can be seen clearly.
  • Page 35 PRK-6000 Operation Manual Displaying of stored Image Press DISP button in observation display. Images stored in memory will be displayed. [Menu Display] Serial number–Sub number Date of the selected image Time of the selected image Right side eye [Mode] Cursor...

  • Page 36: Display Mode

    PRK-6000 Operation Manual 6.3 DISPLAY Mode The stored 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 END button in order to go out SIZE Mode.

  • Page 37: Setup Mode

    PRK-6000 Operation Manual 6.4 SETUP Mode Change all the settings about measurements, printouts etc. Press SETUP button in Measurement Mode. PAGE1 of SETUP Mode will be displayed. Press END button in order to return to Measurement Mode. Refractometry / Keratometry [How to Change the Page] Press one of six tab buttons on the upper side of display.
  • Page 38 PRK-6000 Operation Manual K1 ·················· Refractive power on minimum meridian K2 ·················· Refractive power on maximum meridian AX ·················· Axis on minimum meridian AVG AR ··················Average radius of curvature CY ··················Corneal astigmatism AX ·················· Axis of corneal astigmatism INC-K Increment of corneal power and astigmatism...
  • Page 39 PRK-6000 Operation Manual Serial Number, Time and date [How to Change the Page] Press one of six tab buttons on the upper side of display. [How to Change the Item] Pressing any button on display yields the selection of related item.
  • Page 40 PRK-6000 Operation Manual Print Format, Communication [How to Change the Page] Press one of six tab buttons on the upper side of display. [How to Change the Item] Pressing any button on display yields the selection of related item. [How to Change the Contents] Press any un-pressed button on display.
  • Page 41 PRK-6000 Operation Manual Customize Measuring Modes, AutoStart, etc. [How to Change the Page] Press one of six tab buttons on the upper side of display. [How to Change the Item] Pressing any button on display yields the selection of related item.
  • Page 42 PRK-6000 Operation Manual Messages for Internal Printer Enter a message to be printed out with the results of measurement using the internal printer in this window. You can enter a messages in 24 characters × 2 lines. [How to Change the Page] Press one of six tab buttons on the upper side of display.

  • Page 43: Power Saving Mode

    PRK-6000 Operation Manual Adjust Brightness Adjust the brightness of monitor. [How to Change the Page] Press one of six tab buttons on the upper side of display. [How to adjust the monitor] Press “LCD-” or “LCD+” button to adjust the brightness of monitor (1~35).

  • Page 44: Self Inspection And Maintenance

    PRK-6000 Operation Manual 7. Self Inspection and Maintenance 7.1 Before Calling a Service Person Warning messages will be displayed on the monitor if some problems occur. It might be operation errors or problems of the machine. In this case, refer the following instructions.
  • Page 45 PRK-6000 Operation Manual Instruct the examinee to open and close his or When the Mire Image is not clear because her eyes several times and measure again. ERROR the cornea is dry. Examinee has strong irregular astigmatism Impossible to measure or corneal disease.

  • Page 46: Replacement

    PRK-6000 Operation Manual 7.2 Replacement 7.2.1 Printing Paper Replace the roll of printing paper as soon as possible if the red line appears in the paper. Open the printer cover. Remove the printer cap after pushing the printer lever, and then take ‘used paper out.

  • Page 47: Cleaning

    This instrument incorporates a lithium battery, which may pollute CAUTION the environment if the instrument is abandoned. Please ask a professional waste disposal company to handle disposal, or contact POTEC representative or distributor before disposing of the instrument. - 39 -...

  • Page 48: Classifications And Specifications

    PRK-6000 Operation Manual 8. Classifications and Specifications 8.1 Classifications Classification of equipment: Class Ⅰ Applied part of equipment: Type B Applied Part(Chinrest & Headrest) Protection against electric shock: ClassⅠ Protection against harmful ingress of water: Ordinary (IPX0) Method of sterilization: Not applicable...

  • Page 49: Specifications

    PRK-6000 Operation Manual 8.2 Specifications Refractometry Vertex Distance(VD) 0.0, 12.0, 13.5, 15.0 mm Sphere Power(SPH) -25.00 ~ +22.00 D (at the vertex distance of 12 mm) (Increments selectable between 0.12 and 0.25 D) Cylinder Power(CYL) 0.00 ~ ±10.00 D (Increments selectable between 0.12 and 0.25 D) Axis(AX) 1 ~ 180˚...

  • Page 50: Components

    PRK-6000 Operation Manual 9. Components PRK-6000 Main Unit Operation Manual Power Supply Cable Test Model Eye Chin Rest Paper about 100 sheets Printing Paper 2 rolls Dust Cover Optional Accessories Chin rest paper 500 sheets Printing paper 10 rolls - 42 -...

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