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Operation Manual

24

5.2. Chart types

There are 4 types of chart type presentations:

1.

Snellen chart type

2.

LogMar Modified chart type

3.

Snellen Modified chart type

4.

Snellen Contrast chart type

5.2.1. Snellen type chart presentation

The Snellen chart remains the most popular chart design among clinicians. A range
of different optotypes can be displayed in Snellen. A single row or column can be
shown and a range of masks are available to isolate specific letters or rows.

Display area of the panel does not allow presenting more than one optotype sizes
0.05 to 0.25 at a time. To view all available optotypes for mentioned sizes please
use right and left Arrows. Table below lists number of optotype charts for each
size.

Pic.8.

Example of Snellen type chart

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Содержание TCP-2000

Страница 1: ...USER MANUAL FOR THE TCP 2000 CHART PANEL 40 21122 15 107 02EN Rev 002...

Страница 2: ......

Страница 3: ...s units 14 4 6 Children Tests 15 4 7 Keep Visus 15 4 8 Randomize 15 4 9 Mirror 16 4 10 Snellen background 16 4 11 Phoropter 17 4 12 User defined programs PROGRAM 1 PROGRAM 2 18 PROGRAM 3 18 4 12 1 Pro...

Страница 4: ...en 35 5 5 7 Amsler tests 35 5 5 8 Description of the IR remote functions 35 5 6 Vertical Coincidence Horizontal Coincidence Minute Stereo 35 5 7 Street lamp test 36 5 8 Ishihara tests 36 5 9 Contrast...

Страница 5: ...ng operating the Chart Panel you have encountered problems which you can not solve or LCD Chart Panel parameters are changed please in all these cases contact the manufacturer Only manufacturer s auth...

Страница 6: ...art Panel other than specified by the manufacturer Explosion Hazard Do not use the Chart Panel in the presence of flammable moistures Patient Safety Do not perform any testing or maintenance of the Ch...

Страница 7: ...ufacturer have carried out all the operations or assembly extensions adjustments modifications or repairs The electric plant of the room complies with the electric standards The instrument is utilized...

Страница 8: ...50 60 Hz Power consumption 19 W max Classification Class I Operating temperature range 5C to 40C Storage temperature range 0C to 40C Air pressure 860 to 1060 hPa Relative humidity 90 max without cond...

Страница 9: ...TCP 2000 Letters X Pictures X Numbers X Snellen E X Landolt rings X Red green tests X Astigmatism test X Fixation Point X Cross cylinder X Masks vertical single horizontal underlining X Contrast tests...

Страница 10: ...change distance units from meters to feet 6 5 to 23 5 feet For information on how to adjust the distance please refer to chapter 4 1 Mounting instruction for TCP 2000 panel is presented below 1 Each...

Страница 11: ...n Manual 11 3 3 How to operate chart panel with remote control All functions of Chart Panel are controlled via IR remote control Picture 2 describes functions of remote control buttons Pic 2 IR remote...

Страница 12: ...the Chart Panel is ready to use Install battery into remote control unit and enter Configuration MENU to set up Chart Panel options Before you start tests on patient you have to configure TCP 2000 pr...

Страница 13: ...ance between patient with AMD Age Related Macular Degeneration and TCP 2000 Chart Panel 1 Enter AMD Distance using Arrow Up or Arrow Down button 2 Press Right Arrow to enable distance edit mode 3 Use...

Страница 14: ...nter edit mode 3 Use Up and Down Arrows to select parameter Snellen Chart LogMar Chart Modified Snellen Chart Modified or Snellen Contrast 4 Press Left Arrow to apply changes 4 5 Visus units Option Vi...

Страница 15: ...isus When you activate this option visus values size will not change when you switch to other chart types or tests Example Activate Keep Visus option Press button A to select the biggest Letter chart...

Страница 16: ...Arrow to enter edit mode 3 Use Up and Down Arrows to set edited parameter to Yes or No value 4 Press Left Arrow to apply changes 4 10 Snellen background Option Snellen background allows to select blac...

Страница 17: ...ack background Pic 6 Screen with white background 4 11 Phoropter Set this option to Yes when you use TCP 2000 Chart Panel together with phoropter Adjust colours see chapter 4 14 4 to assure interpreta...

Страница 18: ...ow to enter Programming Mode 3 Now you can start building your program sequence Select test you want to add to current program picture tests or masks To confirm your selection and add step to the prog...

Страница 19: ...other button than F1 F2 F3 or Left and Right Arrow 4 13 Auto Off This function allows user to preset time after which Chart Panel enters stand by mode You can set this time from 4 to 10 minutes 1 Ent...

Страница 20: ...2 Press right Arrow Enter password message will be displayed From the remote control type following sequence If the incorrect sequence has been entered Invalid service code Press any key message appe...

Страница 21: ...l TCP 2000 charts and tests at random cycle This feature is mostly used during exhibitions etc 1 Select Demo using Arrow Up or Arrow Down button 2 Press Right Arrow to run demonstration mode 3 To exit...

Страница 22: ...lour value use up and down Arrow button To accept and store the value press left Arrow 4 15 Exiting Menu Select Exit ON OFF using Arrow Up or Arrow Down button 1 Press Right Arrow button to exit Servi...

Страница 23: ...00 Navigating through optotype charts 1 Press one of five top buttons of the remote control to display the biggest optotype chart possible of the selected type A letters B pictures C numbers D Snellen...

Страница 24: ...rt design among clinicians A range of different optotypes can be displayed in Snellen A single row or column can be shown and a range of masks are available to isolate specific letters or rows Display...

Страница 25: ...6 0 2 0 25 3 6 0 32 0 5 0 7 0 9 1 1 1 6 0 4 0 6 0 8 1 0 1 25 2 0 5 10 Table 2 Sharpness degrees for Snellen type chart 5 2 2 LogMar Modified type chart presentation The LogMar Modified chart is a supe...

Страница 26: ...t All signs on screen have the same sharpness degree When you press contrast adjustment button then contrast changes in the same way for all rows More than one version of every stimulus displayed on t...

Страница 27: ...30 Table 3 Sharpness degrees for Snellen Modified type chart 5 2 4 Snellen Contrast type chart presentation Same as Snellen modified but each line is displayed in different contrast level All charts o...

Страница 28: ...wo presentations with white or black background To change from one presentation to another press again button 5 4 Red green tests To display one of red green charts simply press button corresponding t...

Страница 29: ...image Colour Pictures For Children Amsler Tests Description of the IR remote How to navigate in Custom tests 1 Use Arrows to highlight one of available tests 2 Press button to enter selected test 3 To...

Страница 30: ...e Smart Chart makes it a simple task to deliver questions and instructions to the patient The meanings of these bars can be adapted by each practitioner according to their needs and the level of patie...

Страница 31: ...choice down choice one up choice two It may happen that neither choice seems perfectly clear That is OK simply choose which one seems better If neither choice seems better than the other indicate to...

Страница 32: ...ecognize choice two point with your right hand to the side The rest of the test will be conducted in this way III Instructions for patients being presented with Landoldt Rings Snellen E or Hands When...

Страница 33: ...hart type Landolt Rings Snellen Chart type HOTV test Snellen Chart type Letters LogMar Modified Chart Snellen E LogMar Modified Chart 1 After required chart has been selected the biggest available siz...

Страница 34: ...6 options of HOTV tests in Snellen Chart Type in LogMar Modified Type Chart in Snellen Modified Type Chart in Snellen Contrast Type Chart in Snellen Chart Type with Crowding Bars in LogMar Modified T...

Страница 35: ...ed from one animation to another 5 5 7 Amsler tests There are three options of Amsler test Black bars on white background White bars on black background Red bars on black background Use left and right...

Страница 36: ...Up Arrow to jump 10 tests forward 5 Press Down Arrow to jump 10 tests backward 6 Press again to display test hint 5 9 Contrast tests Three types of contrast test are available 1 Dot test 2 Snellen E...

Страница 37: ...otypes Available sizes are from 0 125 to 2 0 4 Press Left Arrow to return to previous test Pic 11 Contrast test 5 10 Contrast adjustment Each optotype chart can be displayed in required contrast Contr...

Страница 38: ...ast again to 100 press CNT button continuously Contrast will increase with 10 steps When it reaches 100 it will loop back to 5 Pic 12 Contrast test 5 11 Eye anatomy pictures In TCP 2000 Chart Panel th...

Страница 39: ...continuously displayed in the left bottom corner of screen Depending which mask type you are using different shapes are displayed square single mask horizontal rectangle horizontal mask vertical recta...

Страница 40: ...over selected chart of optotypes 1 To activate press 2 Use Arrows to move mask up and down 3 When working with optotypes with visus 0 1 to 0 25 you can move to the other presentation of same size opt...

Страница 41: ...ed optotype chart 1 To activate press 2 Use Arrows to move mask in any direction 3 Press again to deactivate Pic 20 Vertical mask Masks are not available for LogMar Modified type chart Instead there i...

Страница 42: ...te mask 2 If you have red green mask active you can still use Arrows to change optotypes 3 Press again to deactivate mask Red green mask can be used only with optotype charts You can not display red g...

Страница 43: ...Operation Manual 43 7 SOFTWARE VERSION Information about current version of chart panel software is displayed in right bottom part of Configuration Menu screen...

Страница 44: ...ken LCD screen broken or control electronics broken Call service Call service 3 IR remote fails to operate Faulty battery IR remote broken IR receiver faulty Mother board broken Check and replace batt...

Страница 45: ...example large motors portable radios cellular phones etc It has been tested to the following specification EN 60601 2 24 1998 Excessive interference may affect the Chart Panel operation If it occurs t...

Страница 46: ...Panel shall not be turned over because the cleaning solution can enter it The Chart Panel shall not be autoclaved This Chart Panel is a high precision optical instrument which is made up of many elect...

Страница 47: ...evice or parts of it should be done according to local environmental and waste disposal regulations Do not dispose to the nature Do not send back to the manufacturer Chart Panel components do not pose...

Страница 48: ...its authorized representative within 30 days A Chart Panel sent for testing repair or replacement shall be submitted to Manufacturer or its authorized representative in its original or equivalent pac...

Страница 49: ...Spare part Picture ANNEX LETTER Part Number 1 IR remote Not shown 40 21108 2 AC Power cord 2m Not shown 06 49011 3 Red Green glasses Not shown 40 21117 4 Battery for remote control Not shown 31 20701...

Страница 50: ...Operation Manual 50...

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