Visiometrics HD Analyzer OQAS, User Manual

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3.4.3 Working with measurements ....................................................................... 30
3.4.3.1 Loading a specific measurement ............................................................. 30
3.4.3.2 Printing various measurements ............................................................... 31
3.4.3.3 Comparing various measurements .......................................................... 31
3.4.3.4 Deleting measurements ........................................................................... 32
3.5 MEASUREMENTS .............................................................................................. 32
3.5.1 How to perform an acquisition ..................................................................... 36
3.5.2 Best Focus ................................................................................................... 39
3.5.3 Types of measurement ................................................................................ 40
3.5.3.1 OSI and Light Condition ........................................................................... 40
3.5.3.2 Tear Film .................................................................................................. 42
3.5.3.3 Depth of Focus ......................................................................................... 43
3.5.4 Monitoring of results..................................................................................... 45
3.5.4.1 OSI and Light Condition ........................................................................... 46
3.5.4.2 Tear Film .................................................................................................. 55
3.5.4.3 Depth of Focus ......................................................................................... 59
3.5.4.4 Result comparison screens ..................................................................... 61
3.5.5 Purkinje Measurement ................................................................................. 63
3.5.5.1 Introducing the subjective refraction ........................................................ 63
3.5.5.2 Selecting the Purkinje option ................................................................... 65
3.5.5.3 Move the machine away from the patient and focus the eye .................. 65
3.5.5.4 Select the appropriate option ................................................................... 66
3.5.5.5 Focus with the help of the directional arrows .......................................... 67
3.5.5.6 Automatic capture of images and detection of searched items ............... 72
3.5.5.7 Validating a partial image ........................................................................ 74
3.5.5.8 Acquire and validate the remaining partial images .................................. 76
3.5.5.9 Final results .............................................................................................. 78
3.5.6 Printing and exporting a report of the results ............................................... 79
3.6 SETUP ................................................................................................................. 87
3.6.1 Identification ................................................................................................. 87
3.6.2 General visual behavior ............................................................................... 87
3.6.3 Save and export ........................................................................................... 88
3.6.4 Visual options for "OSI"................................................................................ 88
3.6.5 Tear Film options ......................................................................................... 89
3.6.6 Visual options for Purkinje ........................................................................... 89
3.6.7 Modify and Cancel buttons .......................................................................... 89
3.6.8 Additional buttons ........................................................................................ 89
3.7 BACKUP .............................................................................................................. 90
4 MEASUREMENT EXAMPLES ..................................................................... 91
4.1 NORMAL EYE...................................................................................................... 91
4.2 EYE WITH CATARACT ....................................................................................... 92
4.3 POST-LASIK EYE ................................................................................................ 93
5 TROUBLESHOOTING ................................................................................. 95
5.1 ERROR MESSAGES ........................................................................................... 95