Carl Zeiss
Cirrus HD-OCT Model 500 and 5000 User Manual Rev A Aug 2015
User Manual
314 Pages
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CIRRUS HD-OCT User Manual – Models 500, 5000
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Copyright © 2015 Carl Zeiss Meditec, Inc. All rights reserved.
Trademarks CIRRUS, FastTrac, FORUM, GPA, Live OCT Fundus, and Stratus OCT are either registered trademarks or trademarks of Carl Zeiss Meditec, Inc. in the United States and/or other countries. Windows, Windows Media, Windows Server, and Microsoft are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. Mac OS, iMac, iPad, and QuickTime are either registered trademarks or trademarks of Apple Inc. in the United States and/or other countries. All other trademarks used in this document are the property of their respective owners.
Patents www.meditec.zeiss.com/patents
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Safety and Certifications Before using the CIRRUS HD-OCT, you must fully understand potential safety hazards. Read the following safety warnings and cautions in their entirety before using the HD-OCT instrument. Additional warnings and cautions are found throughout the instructions for use.
Symbols and Labels Warning Caution Note Must Follow Instructions for Use Stand–by
Fuse Direct Current
Type B applied parts Manufacturer Authorized European Community Representative Serial number Catalog number / part number Model number Conforms to applicable European Directive(s) CE Mark with identification number of DQS – accredited Notified Body for compliance assessment to the European Union directives, including Medical Device Directive 93/42/EEC.
Certification mark of CSA – Nationally recognized test laboratory for US and Canada Disposal of the Product within the E.U. Do not dispose via domestic waste disposal system or communal waste disposal facility.
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Warning and Caution Definitions The terms WARNING and CAUTION and the symbol designating each are defined as follows. WARNING: Indicates hazards that, if not avoided, may cause severe injury or death. CAUTION: Indicates hazards that, if not avoided, may result in minor or moderate injury, or damage to or impaired performance of equipment.
Warnings WARNING: To prevent electric shock, the instrument must be plugged into an earth grounded outlet. Do not remove or disable the ground pin. Only an authorized Zeiss service representative may install the instrument. WARNING: Do not open the instrument covers. (Exception: You may remove the rear cover to access labels and connectors.) Opening the instrument covers could expose you to electrical and optical hazards. WARNING: To maintain patient safety, if the instrument is externally connected to non– medical peripheral devices (i.e., printer, storage devices, etc.), the complete system must comply with the system requirements in standard IEC 60601–1. This standard requires the usage of an Isolation Transformer to power the non–medical peripheral device(s) if located within 1.5 m from the patient. If the peripheral device is located outside the patient environment (beyond 1.5 m) and is connected to the instrument, a separation device must be used or there shall be no electrical connection between the non–medical peripheral device and the instrument. WARNING: The person or the responsible organization connecting additional devices or reconfiguring the system must evaluate the complete system to ensure compliance to the applicable IEC 60601–1 requirements. WARNING: The instrument operator must not attempt to touch the patient and the peripheral device simultaneously. WARNING: This instrument may cause ignition of flammable gases or vapors. Do NOT use in the presence of flammable anesthetics such as nitrous oxide, or in the presence of pure oxygen. WARNING: The instrument itself is transportable and may be moved from one location to another. However, if the instrument is placed on a power table provided by CZMI, do not move the table to another location while the instrument and any other peripherals are placed on it. Doing so may cause the system components to tip over and cause harm to the patient, the operator, or others in the vicinity. WARNING: Do not scan patients who have been injected with photo–dynamic therapy (PDT) treatment drugs, such as Visudyne®, in the previous 48 hours. Failure to observe this
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v warning could result in unintended exposure and uncontrolled treatment of neovascular vessels. WARNING: This device contains visual stimuli, including flickering light and flashing patterns, between 5 and 65 Hz. Medical professionals need to determine whether this device should be used for patients who may be photosensitive, including those with epilepsy.
Cautions CAUTION: Failure to provide proper ventilation could potentially lead to heat build–up, which could cause component failure and/or fire. CAUTION: Users are not authorized to dismantle (except to remove the rear cover) or modify the CIRRUS HD-OCT hardware. To transport the instrument outside the office, you must consult with a Zeiss service technician. CAUTION: Avoid tipping. Do not use the instrument on an uneven or sloped surface. Also, do not roll the table in deep pile carpet or over objects on the floor such as power cords. Failure to observe these precautions could result in tipping of the instrument and/or table and resulting injury to operator or patient and damage to the instrument. CAUTION: When you complete scan acquisition and before you click the Finish or ID Patient buttons in the Acquire screen, always prompt the patient to sit back and move the head away from the chinrest. Clicking either of these buttons in the Acquire screen causes the chinrest to reposition itself beyond the point where the patient’s eye would contact the lens if the head remained in the chinrest. Failure to observe this warning could result in injury to the patient. CAUTION: The operator should check that the patient is not holding on to the instrument before or during tests. Although movement of the motorized chinrest is slow, giving plenty of warning for patients to remove their fingers, there is potential for fingers to be squeezed and possibly injured. CAUTION: Do not reconfigure system components on the table, nor add non–system devices or components to the table, nor replace original system components with substitutes not approved by Zeiss. Such actions could result in failure of the table height adjustment mechanism, instability of the table, tipping and damage to the instrument, and injury to operator and patient. CAUTION: Do not use the printer, the instrument, or the optional power table with an extension cord or a power strip (multiple portable socket outlet).
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vi CAUTION: Applicable Phototoxicity Statements (FDA CDRH Ophthalmologist Guidance #71): Because prolonged intense light exposure can damage the retina, the use of the device for ocular examination should not be unnecessarily prolonged. While no acute optical radiation hazards have been identified for direct or indirect ophthalmologist, it is recommended that the exposure time for the patient’s eye be limited to the minimum time that is necessary for image acquisition. Infants, aphakes, and persons with diseased eyes will be at greater risk. The risk may also be increased if the person being examined has had any exposure with the same instrument or any other ophthalmic instrument using a visible light source during the previous 24 hours. This will apply particularly if the eye has been exposed to retinal photography. This medical device has no user adjustable intensity settings for light incident on the retina, nor does it produce UV radiation or short– wavelength blue light. CAUTION: The appliance coupler is the main disconnect device of the instrument. Position the instrument in such a way to have easy access to disconnect the appliance coupler in case of an emergency. For the CIRRUS HD-OCT, the most accessible power cord is the one that plugs into the bottom of the table. CAUTION: In case of an emergency, disconnect the appliance coupler. For the CIRRUS HD-OCT, the most accessible power cord is the one that plugs into the bottom of the table.
Protection of Patient Health Information NOTE: Health care providers have responsibility for the protection of patient health information (PHI), both hardcopy and electronic. To protect patient confidentiality of your exported electronic data, the use of encryption is recommended and is the responsibility of the user.
Safety NOTE: If a serious incident has occurred in relation to this medical device, to the user, or to another person, then the user (or responsible person) must report the serious incident to the medical device manufacturer or the distributor. In the European Union, the user (or responsible person) must also report the serious incident to the Competent Authority in the state where the user is established.
Product Safety WARNING: To prevent electric shock, the instrument must be plugged into an earth grounded outlet. Do not remove or disable the ground pin. Only an authorized Zeiss service representative may install the instrument. WARNING: Do not open the instrument covers. Opening the instrument covers could expose you to electrical and optical hazards. WARNING: To maintain patient safety, if the instrument is externally connected to non– medical peripheral devices (i.e., printer, storage devices, etc.), the complete system must
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vii comply with the system requirements in standard IEC 60601–1. This standard requires the usage of an Isolation Transformer to power the non–medical peripheral device(s) if located within 1.5 m from the patient. If the peripheral device is located outside the patient environment (beyond 1.5 m) and is connected to the instrument, a separation device must be used if there shall be electrical connection between the non–medical peripheral device and the instrument. WARNING: The person or the responsible organization connecting additional devices or reconfiguring the system must evaluate the complete system to ensure compliance to the applicable IEC 60601–1 requirements. CAUTION: The instrument operator must not attempt to touch the patient and the peripheral device simultaneously. WARNING: This instrument may cause ignition of flammable gases or vapors. Do NOT use in the presence of flammable anesthetics such as nitrous oxide, or in the presence of pure oxygen. WARNING: The instrument itself is transportable and may be moved from one location to another. However, if the instrument is placed on a power table provided by CZMI, do not move the table to another location while the instrument and any other peripherals are placed on it. Doing so may cause the system components to tip over and cause harm to the patient, the operator, or others in the vicinity. WARNING: Do not scan patients who have been injected with photo–dynamic therapy (PDT) treatment drugs, such as Visudyne®, in the previous 48 hours. Failure to observe this warning could result in unintended exposure and uncontrolled treatment of neovascular vessels. CAUTION: Avoid tipping. Do not use the instrument on an uneven or sloped surface. Also, do not roll the table in deep pile carpet or over objects on the floor such as power cords. Failure to observe these precautions could result in tipping of the instrument and/or table and resulting injury to operator or patient and damage to the instrument. CAUTION: When you complete scan acquisition and before you click Finish or ID Patient in the Acquire Screen, always prompt the patient to sit back and move the head away from the chinrest. Clicking either of these buttons in the Acquire screen causes the chinrest to reposition itself beyond the point where the patient’s eye would contact the lens if the head remained in the chinrest. Failure to observe this warning could result in injury to the patient. CAUTION: The operator should check that the patient is not holding on to the instrument before or during tests. Although movement of the motorized chinrest is slow, giving plenty of warning for patients to remove their fingers, there is potential for fingers to be squeezed and possibly injured. CAUTION: (United States) Federal law restricts this device to sale by or on the order of a licensed healthcare practitioner.
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viii CAUTION: Do not reconfigure system components on the table, nor add non–system devices or components to the table, nor replace original system components with substitutes not approved by Zeiss. Such actions could result in failure of the table height adjustment mechanism, instability of the table, tipping and damage to the instrument, and injury to operator and patient. CAUTION: Do not use the printer, the instrument, or the optional power table with an extension cord or a power strip (multiple portable socket outlet). NOTE: The optional CIRRUS HD-OCT Power Table is safe to use within the patient environment when the instrument is powered through it, as instructed herein.
Optical Safety • IEC 60825–1 • EN ISO 15004–2 • Classification: Group 1 Instrument – Per EN ISO 15004–2. Group 1 instruments are ophthalmic instruments for which no potential light hazard exists. WARNING: This device contains visual stimuli, including flickering light and flashing patterns, between 5 and 65 Hz. Medical professionals need to determine whether this device should be used for patients who may be photosensitive, including those with epilepsy. CAUTION: Applicable Phototoxicity Statements (FDA CDRH Ophthalmoscope Guidance #71): Because prolonged intense light exposure can damage the retina, the use of the device for ocular examination should not be unnecessarily prolonged. While no acute optical radiation hazards have been identified for direct or indirect ophthalmoscopes, it is recommended that the exposure time for the patient’s eye be limited to the minimum time that is necessary for diagnosis. Infants, aphakes and persons with diseased eyes will be at greater risk. The risk may also be increased if the person being examined has had any exposure with the same instrument or any other ophthalmic instrument using a visible light source during the previous 24 hours. This will apply particularly if the eye has been exposed to retinal photography. This medical device has no user adjustable intensity settings for light incident on the retina, nor does it produce UV radiation or short– wavelength blue light. CAUTION: The appliance coupler is the main disconnect device of the instrument. Position the instrument in such a way to have easy access to disconnect the appliance coupler in case of an emergency. CAUTION: In case of an emergency, disconnect the appliance coupler from the back of the instrument. When the power cord is connected to the instrument, the green light on the power switch will start flashing. When the power switch is pressed, the light will change to solid green and the entire instrument will be powered.
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ix Networking Safety WARNING: When networking the CIRRUS HD-OCT, use only network cables with an unshielded RJ–45 connector. Use of a shielded network cable in the CIRRUS HD-OCT could result in electrical shock to the patient and/or examiner.
Network Attached Storage Device Safety WARNING: To directly connect the NAS device to the CIRRUS HD-OCT, use a network patch cord only with an unshielded RJ–45 connector. Use of a shielded network patch cord will ground the NAS device through the CIRRUS HD-OCT, which could result in electrical shock to the patient and/or examiner. CAUTION: We strongly recommend you use peripheral devices supplied or approved by Zeiss, when available, because they will have been tested to work with the instrument. If you do use a peripheral device that conforms with the requirements in this section but is not supplied by Zeiss, do not install any unapproved third party software on the instrument. Installation of any unapproved software, including drivers, could degrade the performance of the instrument and/or lead to corrupted diagnostic or therapeutic information and may void the instrument warranty. CAUTION: Do not use the NAS device or the instrument with an extension cord or a power strip (multiple portable socket outlet). For additional safety, do not plug the NAS device and the instrument into the same wall outlet. Failure to observe this instruction could result in electrical shock to the patient and/or examiner.
Printer Safety WARNING: Except when powering the printer through an isolation transformer in the USB configuration, peripheral devices such as printers must be placed at least 1.5 meters (4.9 feet) away from the patient, such that the patient cannot touch a peripheral device with any part of his or her body while being examined. In addition, the instrument operator must not attempt to touch the patient and a peripheral device at the same time while examining the patient. Failure to observe this warning could result in electrical shock to the patient and/or examiner. Use of a printer in a wireless configuration enables you to observe this warning more easily. WARNING: When using the printer in the USB configuration, you must power the printer through an isolation transformer. Failure to observe this warning could result in electrical shock to the patient and/or examiner. To do so, you must use a special power cable. In North America, the required cable has an IEC–320–14 connector on one end and a NEMA S–15R connector on the other end. This cable is included in the accessory kit shipped with the instrument. WARNING: To directly connect a printer to the CIRRUS HD-OCT using a network patch cord (UTP cable), only use an unshielded RJ–45 connector. Use of a shielded network patch cord will ground the printer through the CIRRUS HD-OCT, which could result in electrical
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x shock to the patient and/or examiner. It could also invalidate the system safety approval. In this configuration, the printer must be placed at least 1.5 m away from the patient. CAUTION: If you use a non–approved device or if you connect it incorrectly-for example, by plugging the printer into the wall while using a USB connection, or by using a shielded network (UTP) cable-you could invalidate the system safety approval. CAUTION: We strongly recommend you use peripheral devices supplied or approved by Zeiss, when available, because they will have been tested to work with the instrument. If you do use a peripheral device that conforms with the requirements in this section but is not supplied by Zeiss, do not install any unapproved third party software on the instrument. Installation of any unapproved software, including drivers, could degrade the performance of the instrument and/or lead to corrupted diagnostic or therapeutic information and may void the instrument warranty. CAUTION: Do not use the printer or the instrument with an extension cord or a power strip (multiple portable socket outlet). For additional safety, do not plug the printer and the instrument into the same wall outlet. Failure to observe this instruction could result in electrical shock to the patient and/or examiner.
Record and Data Safety Patient Record Deletion CAUTION: Deletion is permanent in Native Archive mode; you cannot recover a patient record nor retrieve its archived exams, because deleting a patient record includes deleting that patient’s index data. The deleted index data includes where the archived exam data can be found.
Patient Records Merge CAUTION: Be certain that you select the correct patient records to merge. Once you merge patient records, you must use the Move Scan feature to separate the merged file.
Data Archive and Retrieve CAUTION: We strongly recommend that you archive daily to a network archive location (a network file server or network attached storage device). If you do not archive at all, paper records are the only way to retain patient information in case of system hard drive malfunction.
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xi Risks of Internet Connectivity CAUTION: When connected to the Internet, the CIRRUS HD-OCT may be vulnerable to serious security risks, including viruses and worms that could disable your system or adversely affect its performance. Internet connectivity enables third party software, software drivers and updates to be downloaded to your system, either automatically or intentionally. Installation of any unapproved software, including drivers, could degrade the performance of the instrument and/or lead to corrupted diagnostic or therapeutic information and may void the instrument warranty.
Windows Automatic Update CAUTION: All non–high–priority updates (driver, hardware or optional updates, etc.) should not be installed.
Prohibited Activities The following activities are prohibited using the CIRRUS HD-OCT instrument. CAUTION: Attempting to perform these prohibited activities may void your CIRRUS HD-OCT warranty and may result in damage to your CIRRUS HD-OCT system. Zeiss is not responsible for software upgrades or repairs necessitated by the attempted performance of the following prohibited activities. • Do not relocate the CIRRUS HD-OCT database to a network file server. • Do not share CIRRUS HD-OCT folders with other computer systems via the network. • Do not share the CIRRUS HD-OCT system printer on the network if the printer is connected to the USB port.
Networking Guidelines CIRRUS HD-OCT provides IT–Network capabilities in order to allow for data archiving as well as information sharing within the clinical environment and across medical facilities. NOTE: Users are responsible for network setup and maintenance, including installation and configuration of all necessary hardware and software. Zeiss Technical Support is limited to testing network connectivity of the CIRRUS HD-OCT. Technical Support cannot troubleshoot or repair problems with network connectivity. Please observe the following guidelines regarding networking of the CIRRUS HD-OCT instrument. Refer to the CIRRUS OCT Installation Guide for all additional information on network connectivity.
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Electromagnetic Compatibility (EMC) WARNING: The use of accessories, transducers and cables other than those specified may result in increased emissions or decreased immunity of the equipment. WARNING: The CIRRUS HD-OCT should not be used adjacent to or stacked with other equipment. If adjacent or stacked use is necessary, the equipment or system should be observed to verify normal operation in the configuration in which it will be used. CAUTION: The CIRRUS HD-OCT has special EMC precaution requirements and needs to be installed and put into service according to the EMC information provided herein. CAUTION: Portable and mobile RF communications equipment can affect medical electrical equipment. Guidance and manufacturer’s declaration – electromagnetic emissions The CIRRUS HD-OCT is intended for use in the electromagnetic environment specified below. The customer or user of the CIRRUS HD-OCT should assure that it is used in such an environment. Emissions Test
Compliance
RF emissions CISPR 11
Group 1
RF emissions CISPR 11
Class A
Harmonic emissions IEC 61000–3–2
Class A
Voltage fluctuations/flicker emissions IEC 61000–3–3
Complies
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Electromagnetic environment – guidance The CIRRUS HD-OCT uses RF energy only for its internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment. The CIRRUS HD-OCT CIRRUS are suitable for use in all establishments other than domestic establishments and those connected to a low voltage power supply network which supplies buildings used for domestic purposes.
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Guidance and manufacturer’s declaration – electromagnetic immunity The CIRRUS HD-OCT is intended for use in the electromagnetic environment specified below. The customer or user of the CIRRUS HD-OCT should assure that it is used in such an environment. Immunity Test
IEC 60601 test level
Compliance level
Electromagnetic environment – guidance
Electrostatic Discharge (ESD) IEC 61000–4–2
± 6 kV contact ± 8 kV air
± 6 kV contact ± 8 kV air
Floors should be wood, concrete, or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30%.
Electrical fast transient/burst IEC 61000– 4–4
± 2 kV for power supply lines ± 1 kV for input/output lines
± 2 kV for power supply lines ± 1 kV for input/output lines
Mains power quality should be that of a typical commercial or hospital environment.
Surge IEC 61000–4–5
± 1 kV differential mode ± 2 kV common mode
± 1 kV differential mode ± 2 kV common mode
Mains power quality should be that of a typical commercial or hospital environment.
Voltage dips, short interruptions, and voltage variations on power supply input lines. IEC 61000–4– 11
<5% UT (>95% dip in UT) for 0,5 cycle 40% UT (60% dip in UT) for 5 cycles 70% UT (30% dip in UT) for 25 cycles <5% UT (95% dip in UT) for 5 sec
<5% UT (>95% dip in UT) for 0,5 cycle 40% UT (60% dip in UT) for 5 cycles 70% UT (30% dip in UT) for 25 cycles <5% UT (95% dip in UT) for 5 sec
Mains power quality should be that of a typical commercial or hospital environment. If the user of the CIRRUS HD-OCT requires continued operation during power mains interruptions, it is recommended that the CIRRUS HD-OCT be powered from an uninterruptible source.
3 A/m
Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment.
Power frequency (50/60 Hz) 3 A/m magnetic field IEC 61000–4–8
UT is the a.c. mains voltage prior to application of the test level.
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Guidance and manufacturer’s declaration – electromagnetic immunity The CIRRUS HD-OCT is intended for use in the electromagnetic environment specified below. The customer or user of the CIRRUS HD-OCT should assure that it is used in such an environment. Immunity Test
IEC 60601 test level
Compliance level
Electromagnetic environment – guidance Portable and mobile RF communications equipment should be used no closer to any part of the CIRRUS HD-OCT, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.
Recommended separation distance d = 1.17 P 80 MHz to 800 MHz
Conducted RF IEC 61000– 4–6
3 Vrms 150 kHz to 80 MHz
3V
Radiated RF IEC 61000–4–3
3 V/m 80 MHz to 2,5 GHz
3 V/m
d = 2.33 P 800 MHz to 2,5 GHz
where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in meters (m). Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey,a should be less than the compliance level in each frequency range.b Interference may occur in the vicinity of equipment marked with the following symbol:
Note 1: At 80 MHz and 800 MHz, the higher frequency applies. Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people. a Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM broadcast, cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the CIRRUS HD-OCT is used exceeds the applicable RF compliance level above, the CIRRUS HD-OCT should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the CIRRUS HD-OCT. b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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Contents Safety and Certifications
1 Introduction Intended Use... 1-1 Indications for Use... 1-1 Usage... 1-1 Operator Profile... 1-2 Intended Demographic... 1-2 Expected Occupational Skills... 1-2 Suggested Job Requirements... 1-2
Data Analyst Profile... 1-3 Subject Profile... 1-3 Installation and Setup... 1-3 User Documentation... 1-4 Accessing PDF Versions... 1-4 Organization... 1-4 Instruction Conventions... 1-5
2 System Overview Hardware... 2-1 Power Up... 2-2 Power Down... 2-2 Power Down Through Software... 2-2 Power Down Through Hardware... 2-2
Software... 2-3 Overview... 2-3 Licensed Applications... 2-3 Basic Screens... 2-3 Toolbar Options... 2-5 Navigation Bar... 2-9 Status Area... 2-9 Components of Status... 2-9
3 System Administration Institution Setup... 3-1 Station Setup... 3-2 Staff Accounts... 3-3
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xvi Register New Staff... 3-3 Edit Staff Records... 3-4 Delete Staff Records... 3-5
Category Registration and Maintenance... 3-5 Category Registration... 3-5 Edit Categories... 3-6 Delete Categories... 3-6
Archive Setup and Selection... 3-6 Set up a CIRRUS HD-OCT Archive... 3-6 Change The Current Archive... 3-8
Set Preferences... 3-9 Archive/Synchronize... 3-9 Archive Alerts... 3-9
Normative Data Settings... 3-10 DICOM Archive... 3-10 Display Options... 3-12 IPv4 / IPv6... 3-12 Preventive Maintenance Service Notifier... 3-13
User Login/Logout... 3-14 User Login... 3-14 User Logout... 3-14 Logout Locks the System... 3-14 Automatic Logout... 3-14
4 Clinical Workflow The Importance of Good Clinical Workflow...
4-1 Patient Good Practices... 4-1 Specific to Iris Imaging... 4-1 Specific to Fundus Imaging... 4-1
Daily Tasks...
4-1 Start of Day... 4-1 End of Day... 4-2 Archive Saved Exams... 4-2 Shut Down the System... 4-2
Patient Records... 4-2 Add New Patients... 4-2 Find Existing Patients... 4-4 Advanced Search... 4-5 Add or Remove Categories for Existing Patient Records... 4-7 View Today’s Patients... 4-8 How Today’s Patients List Is Populated... 4-8 Patient ID Search Conflicts... 4-9
Patient Preparation... 4-10
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xvii Optional Dilation of Patient’s Eye(s) (Posterior Segment) . . . 4-10 Position the Patient on the Chinrest... 4-10 Optional Eyelid Elevation... 4-11 Precautions... 4-11
Patient Instructions... 4-12 Of Special Note for Anterior Scans... 4-12
5 Acquiring Scans Overview of Scan Types... 5-1 Posterior Segment Scans... 5-1 Macular and Optic Disc Cube Scans... 5-1 Macular Cube 512x128... 5-2 Macular Cube 200x200... 5-2 Optic Disc Cube 200x200... 5-2 CIRRUS OCT Angiography... 5-3 Raster Scans... 5-4 Guidelines for Raster Scans... 5-5 Image Pattern Controls... 5-6
Anterior Segment Scans... 5-7 Scan Preparation... 5-7 Instrument Imaging Process... 5-7 Scan Acquisition Controls... 5-7 Scan Pattern Adjustments... 5-7 Aligning Scans Corrected for Beam Scanning Geometry and Corneal Refraction 5-7 Center Corneal Scans on the Corneal Vertex... 5-8 Anterior Chamber and Cornea External Lenses... 5-8 Attaching an External Lens... 5-8 Anterior Chamber Scan (Chamber View™)... 5-9 Guidelines for Anterior Chamber Scan Acquisition... 5-10 Anterior Segment Cube Scan... 5-11 Guidelines for Anterior Segment Cube 512x128 Scan Acquisition . . . 5-12 HD Angle Scan... 5-13 Guidelines for HD Angle Scan Acquisition... 5-14 HD Cornea Scan... 5-15 Guidelines for HD Cornea Scan Acquisition... 5-15 Wide Angle-to-Angle Scan... 5-16 Guidelines for Wide Angle-to-Angle Acquisition... 5-17 Pachymetry... 5-17 Guidelines for Pachymetry Scan Acquisition... 5-18 Anterior Segment 5–Line Raster Scan... 5-19 Guidelines for Anterior Segment 5 Line Raster Scan Cornea Acquisition 5-20
Acquire Screen and Controls... 5-20 Acquire Screen Toolbar... 5-20 Available Scans List... 5-21 Iris Viewport... 5-21
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xviii Fundus Viewport... 5-22 Mouse Controls... 5-24
Live Scan Viewports... 5-24
General Acquire Procedure... 5-25 Set Up for Maximum Image Quality... 5-30 Iris image... 5-30 Fundus image... 5-30 B-scans... 5-30 For All Scans... 5-30
Tracking and Repeat Scans... 5-31 Repeat Scans... 5-31 FastTrac... 5-32 Troubleshooting FastTrac... 5-35
6 Scan Quality Check Overview... 6-1 Quality Check Tools... 6-2 Criteria for Image Acceptance... 6-3 Fundus... 6-3 OCT... 6-3 Check for Saccades and Banding... 6-3 Advanced RPE Analysis Acceptance Criteria... 6-4 CIRRUS OCT Angiography Acceptance Criteria... 6-5 Signal Quality... 6-5 Decorrelation Tails... 6-6 Segmentation Errors... 6-8 Anterior Segment Acceptance Criteria... 6-9 General... 6-9 Anterior Segment Cube Scan... 6-9 Pachymetry Scan... 6-9
7 Analysis Overview... 7-1 Image Menu Options... 7-2 Normative Database Comparisons... 7-2
Posterior Segment... 7-3 Macular Thickness Analysis... 7-3 Fovea Location... 7-4 ETDRS Position... 7-5 ILM–RPE Layers... 7-6 Slab Overlay ILM–RPE Thickness Map... 7-6 Additional Features... 7-6 Macular Change Analysis... 7-8 Manual Selection... 7-8
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xix Macular Registration... 7-9 Synchronized Data Review... 7-12 XML Export... 7-12 Macular Thickness OU Analysis... 7-13 Advanced RPE Analysis... 7-13 RPE Elevation Considerations... 7-14 Sub–RPE Considerations... 7-16 Ganglion Cell OU Analysis... 7-19 En Face Analysis... 7-21 CIRRUS OCT Angiography... 7-24 CIRRUS OCT Angiography Screen Controls... 7-25 CIRRUS OCT Angiography Slab Selection... 7-25 ONH and RNFL OU Analysis... 7-30 RNFL Thickness Maps and Deviation from Normal Maps... 7-31 Changing RNFL Calculation Circle Placement... 7-32 TSNIT Thickness Profiles... 7-32 RNFL Data Table... 7-33 RNFL and ONH Normative Databases... 7-33 Advanced Export... 7-33 Guided Progression Analysis... 7-33 RNFL Thickness Profiles... 7-35 Parameter Summary Graphs... 7-35 RNFL/ONH Summary... 7-37 Optic Nerve Head Changes... 7-38 GPA Scan Selection... 7-39
Anterior Segment... 7-43 Anterior Chamber Depth and Lens Vault... 7-43 Angle-to-Angle Distance... 7-45 Using Anterior Chamber Analysis... 7-45 Using Wide Angle-to-Angle Analysis... 7-45 Corneal Thickness... 7-46 In Pachymetry Analysis... 7-46 In HD Cornea Analysis... 7-49 In Anterior Chamber Analysis... 7-49 In Anterior Segment Analysis... 7-49 In HD Images Analysis... 7-50 Central Corneal Thickness (CCT) Measurement... 7-51 Angle Measurements... 7-52 In HD Angle Analysis... 7-52 In Anterior Chamber Analysis... 7-53 In Wide Angle-to-Angle Analysis... 7-54
Specialized and Integrative Visualization Tools... 7-54 High Definition Images Analysis... 7-54 Change the Displayed Scan Line... 7-55 Image Display Options Buttons... 7-56 Single Eye Summary... 7-57 The Panomap... 7-58
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xx 3D Analysis... 7-59 View Settings... 7-60 Show Settings... 7-61 Clip Selector... 7-61 Clip Surfaces... 7-62 Lighting... 7-62 Light Direction Adjust... 7-62 Greyscale Mode... 7-62 Animation... 7-62 Animation Editor... 7-62 Movie Recording... 7-63 AutoRecord Keyframes... 7-64 Take Snapshot... 7-64 Width, Height, and A–Scan Adjustments... 7-65 Mouse Rotates/Mouse Translates... 7-65 Zoom... 7-65 Straighten Volume Data... 7-65 Transparent Surfaces... 7-66 Reset... 7-66 Advanced Visualization Analysis... 7-67 Retinal Layers Automatically Detected and Displayed... 7-68 Fundus Image Overlay Options... 7-68 Slice and Slab Options... 7-69 Function Buttons in Advanced Visualization... 7-70
8 Reports and Printing Standard Print Options... 8-1 The Report Preview Screen... 8-2 Analysis Related Report Options... 8-4 Macula Thickness Report Options... 8-4 The Macula Multi–Slice Option... 8-5 Macula Radial Report Option... 8-6 Advanced Visualization Report Options... 8-6 ONH and RNFL Thickness Report Options... 8-8 Normative Data Details Report... 8-9 High Definition Images Report (Raster Scan Options)... 8-10 Guided Progression Report Options... 8-11 Summary... 8-12 Latest Scan... 8-12 Parameters Summary Table Report... 8-12 How to Read the GPA Report... 8-12 Normative Data Details Reports... 8-15 Macula Thickness Normative Data Details Report... 8-15
9 Data Management FORUM/DICOM or Native Environment...
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CIRRUS HD-OCT User Manual