Visiometrics HD Analyzer OQAS User Manual
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Visiometrics HD Analyzer OQAS User Manual

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USER'S MANUAL
Version 2.4
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Summary of Contents for Visiometrics HD Analyzer OQAS

  • Page 1 USER’S MANUAL Version 2.4 English Čeština Deutsch Español Français Italiano Nederlands Ελληνικά ‫اللغة العربية‬ 한국어 日本語 Português Türkçe 0318 Magyar Polski...
  • Page 2 OQAS – HDA MODEL: Optical Quality Analysis System – High Definition Analyzer BRAND: HD Analyzer APPLICABLE PARTS: Chin guard (Type B) EVIEW 2017/08 RINTED IN PAIN...

  • Page 3: Table Of Contents

    Table of Contents WARNINGS ......................6 PRECAUTIONS ....................8 INTRODUCTION .................... 9 GENERAL DESCRIPTION ..................9 1.1.1 Double-pass technique ................10 1.1.2 What is OSI? ....................11 1.1.3 What is MTF? ....................12 CHARACTERISTICS ................... 14 APPLICATIONS ....................15 TECHNICAL SPECIFICATIONS OF THE HD ANALYZER™ ......16 1.4.1 Hardware specifications................
  • Page 4 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 MEASUREMENTS ....................32 3.5.1 How to perform an acquisition ..............36 3.5.2 Best Focus ....................
  • Page 5 WARNING MESSAGES ..................96 MANUFACTURER ..................98 REGULATORY INFORMATION ..............99 SYMBOLS ....................100 ELECTROMAGNETIC IMMUNITY............. 100 - 5 -...

  • Page 6: Warnings

    WITH THE USE OF OPHTHALMOLOGICAL DIAGNOSIS AND MONITORING INSTRUMENTS (OPHTHALMOLOGISTS, OPTOMETRISTS, NURSING STAFF, ASSISTANTS, ETC.). THIS EQUIPMENT MUST BE OPERATED USING A POWER SUPPLY APPROVED BY VISIOMETRICS. THE EQUIPMENT MUST NOT BE POSITIONED IN A WAY THAT HINDERS ACCESS TO EQUIPMENT’S POWER CONNECTION TO THE ELECTRICAL NETWORK.
  • Page 7 NOT SUITABLE FOR USE IN FLAMMABLE ENVIRONMENTS. THERE ARE NO PARTS INSIDE THE DEVICE THAT CAN BE REPAIRED BY THE USER. CONTACT YOUR SUPPLIER OR TECHNICAL SERVICE. IN CASE OF BROKEN OR DAMAGED EXTERNAL PARTS, PLEASE, CONTACT TECHNICAL SERVICES BEFORE USING THE DEVICE AGAIN. DO NOT TOUCH THE GLASS OF THE EQUIPMENT’S OUTPUT WINDOW.

  • Page 8: Precautions

    Refer to your supplier or technical service. Contact VISIOMETRICS to ask for help. - 8 -...

  • Page 9: Introduction

    1.1 GENERAL DESCRIPTION Due to the pressing need to measure visual quality in an objective way, VISIOMETRICS has developed the HD Analyzer™, an instrument based on the double-pass technique that provides an objective clinical evaluation of the optical quality of the eye.

  • Page 10: Double-Pass Technique

    HD Analyzer™ Chapter 1: Introduction 1.1.1 Double-pass technique The Figure 1 sample shows a schematic diagram of a double-pass system similar to that of the HD Analyzer™. The light source consists of a laser diode that is 780 nm in wavelength. The beam is spatially filtered and collimated.

  • Page 11: What Is Osi

    HD Analyzer™ Chapter 1: Introduction surface. The reflected light passes through the ocular optics, from the Badal system to the beam splitter. The transmitted light finds in its path the second artificial pupil (PA2) that is combined with the pupillary plane of the eye. This pupil is variable and acts as the effective exit pupil when the natural pupil of the eye has a diameter greater than PA2.

  • Page 12: What Is Mtf

    HD Analyzer™ Chapter 1: Introduction 1.1.3 What is MTF? MTF = Modulation Transfer Function The MTF of an optical system is a function that allows for the evaluation of the degree of detail that the system is able to distinguish, or similarly, it evaluates the relation between the contrast of the real scene and the contrast of the image that forms the system.
  • Page 13 HD Analyzer™ Chapter 1: Introduction Figure 3. Bar patterns with different spatial frequencies and reference mark symbolizing a degree. If the contrast in the system image were the same as the contrast in the real scene, the MTF value would be 1, the maximum possible. As the frequency increases, the MTF decreases because the contrast in the system image is increasingly less than the real scene contrast.

  • Page 14: Characteristics

    HD Analyzer™ Chapter 1: Introduction Figure 5. MTF graph: in the Y axis, the frequencies, in the X the MTF associated with each one. The MFT also varies with the size of the pupil. It is therefore important to look at the pupil’s diameter with which different measurements were taken before comparing them.

  • Page 15: Applications

    HD Analyzer™ Chapter 1: Introduction • In case an inlay KAMRA™ is implanted, assessment of the position of the implanted inlay with respect to the center of the pupil and with respect to the optical axis. • Tools for optimal visualization and quantification of images, such as zoom, rotation, profiles, and measurements on the image.

  • Page 16: Technical Specifications Of The Hd Analyzer

    HD Analyzer™ Chapter 1: Introduction 1.4 TECHNICAL SPECIFICATIONS OF THE HD ANALYZER™ 1.4.1 Hardware specifications Type B Scope of measurements: Between +5 D and -8 D E.E. (upper ametropias, including astigmatism, must be neutralized with an additional lens) • Reproducibility: +/- 0.25 D •...

  • Page 17: Program Specifications

    1.5 PRODUCT SERVICE LIFE The power supply delivered with the HD Analyzer™ equipment has a 3-year service life and must be replaced after this time. This equipment must be operated by using a power supply approved by Visiometrics. - 17 -...

  • Page 18: Accuracy Of The Manual

    HD Analyzer™ Chapter 1: Introduction VISIOMETRICS estimates that the useful life of the equipment, having properly replaced the power supply, is 5 years. Regular use of the HD Analyzer™ over a 5- year period places the dynamic elements of the equipment below 15% of their service lives.

  • Page 19: Hd Analyzer™ Hardware Installation And Maintenance

    HD Analyzer™ Chapter 2: Hardware installation ™ H 2 HD A NALYZER ARDWARE NSTALLATION AND AINTENANCE 2.1 HD ANALYZER™ INSTALLATION Installation of the HD Analyzer™ equipment must be carried out by an authorized installer. The equipment is not designed to be portable. Once installed, moving it to another location is discouraged.
  • Page 20 HD Analyzer™ Chapter 2: Hardware installation Cleaning The only maintenance operation to be performed on the equipment by the user is cleaning, which must be performed as explained below. Always unplug the HD Analyzer™ before cleaning. Wipe the plastic surfaces with a soft cloth slightly moistened with water.
  • Page 21 HD Analyzer™ Chapter 2: Hardware installation • Keep this device dry. • For indoor use only. It is not designed to be used outdoors. Only for professional use. • Turn off or unplug the device when it is not in use. •...

  • Page 22: Functioning Of The Hd Analyzer

    HD Analyzer™ Chapter 3: Functioning ™ HD A UNCTIONING OF THE NALYZER 3.1 USING THE PROGRAM WITHOUT THE HD ANALYZER™ The program allows you to view saved data without the need to connect to or turn on the HD Analyzer™. All operations that the database allows you to perform (see section 3.4) can be performed without the instrument.

  • Page 23: Patient Guidelines

    HD Analyzer™ Chapter 3: Functioning It is recommended that all measurements be taken in rooms with low and constant luminosity, to facilitate the dilation of the pupil. It is also recommended to avoid direct airflow to the patient, so as not to affect the patient's blinking rate. To minimize these situations, you should be clearly aware of the behavior that the patient should follow, and appropriately transmit that to the patient.

  • Page 24: Instructions To The Patient During The "Osi" And "Light Condition" Measurements

    HD Analyzer™ Chapter 3: Functioning should not try to focus it, but rather simply look at the focus point in a relaxed manner throughout the sequence. 3.2.2.3 Instructions to the patient during the "OSI" and "Light Condition" measurements When initiating the sequences to determine the optical quality (OSI and Light Condition), ask the patient to try to focus on the focus point at all times.

  • Page 25: Start Menu

    HD Analyzer™ Chapter 3: Functioning 3.3 START MENU The first time the program is opened, a notification pops up advising one to the read the user manual before using the program. After accepting, the program will display the usual home screen as well as the days remaining until the next recommended calibration.

  • Page 26: Database

    HD Analyzer™ Chapter 3: Functioning • No hardware - Restart: This is only visible if the program could not detect the hardware on startup. It allows you to restart the program and redetect the hardware quickly. • Backup: Allows you to make a backup copy of the patient database and related images into the desired directory.
  • Page 27 HD Analyzer™ Chapter 3: Functioning Figure 7. Patient database The Patient field allows searching patients by name, surname, patient ID, and a range of dates (date of birth, last measurement, or any other measurement). Figure 8. Patient searcher, no filter applied - 27 -...

  • Page 28: Working With Patients

    HD Analyzer™ Chapter 3: Functioning By applying the various filters, the list of patients narrows down. Figure 9. Patient searcher, filter applied Once the desired patient is displayed, select it and press Enter, or double-click it, to load it onto the Database screen. Now the Database displays all the details for this patient, and you can perform new measurements, or load and analyze existing data.

  • Page 29: Modify Data On An Existing Patient

    HD Analyzer™ Chapter 3: Functioning 3.4.2.2 Modify data on an existing patient. Select the patient whose data you wish to modify and click Modify. Make the changes needed and click OK to register the new data. A dialog box asking to confirm the changes will be displayed. If confirmed, the changes will be saved.

  • Page 30: Working With Measurements

    HD Analyzer™ Chapter 3: Functioning Figure 11. Confirming the deletion of a patient’s data By deleting a patient’s data, you will have erased all information and images associated with that patient. Make sure that you are deleting the correct patient’s data. 3.4.3 Working with measurements 3.4.3.1 Loading a specific measurement Once the patient is selected, their previously saved measurements will be displayed.

  • Page 31: Printing Various Measurements

    HD Analyzer™ Chapter 3: Functioning • Information: A summary of the most relevant numeric indicators from the measurement. If the measurement has notes associated with it, this will be shown in these values. To load a measurement and see its results in detail, simply double-click it, or select it and press Enter.

  • Page 32: Deleting Measurements

    HD Analyzer™ Chapter 3: Functioning second measurement. It may be from the same patient or not, but it must be of the same type. Click OK. It must be noted that you cannot load and compare different Purkinje measurements. See section “3.5.4.4 Result comparison screens” for more information on comparison screens.
  • Page 33 HD Analyzer™ Chapter 3: Functioning Figure 13. Entering the refraction, without information If the patient has been studied before, the program will fill in the sphere, cylinder, and axis fields with the last accepted values for that patient. - 33 -...
  • Page 34 HD Analyzer™ Chapter 3: Functioning Figure 14. Entering the refraction, with information already entered The instrument is able to correct automatically the equivalent refractions (spherical refraction + cylindrical refraction/2) within the range of +5D to -8D, as long as the astigmatism is less than or equal to 0.5D.
  • Page 35 HD Analyzer™ Chapter 3: Functioning Depending on the selected correction modes, the program may display some warnings to keep in mind while the measurements are being taken. You may also enter the best corrected visual acuity (BCVA) and the uncorrected visual acuity (UCVA) as additional information to be included in the printed results report, via the "..."...

  • Page 36: How To Perform An Acquisition

    HD Analyzer™ Chapter 3: Functioning 3.5.1 How to perform an acquisition The screen is divided in six different parts (see Figure 16): Figure 16. Main measurement screen A. General information: In the top part of the screen, you will see the name of the doctor and medical center.
  • Page 37 HD Analyzer™ Chapter 3: Functioning E. Input data: Aside from displaying the selected patient’s data, this section also allows you to enter or correct the values taken into the measurement (to be further explained in this section). F. Two types of information can be shown in this section: Best Focus view: View of the status and search results of the best spherical refraction correction.
  • Page 38 HD Analyzer™ Chapter 3: Functioning Figure 17. Data relating to the patient’s eye and refraction It is important to enter correct values for the subjective refraction of the patient since, when performing the Best Focus sequence, the system searches for the best correction of the patient’s spherical refraction within a ±3D range around the spherical equivalent of the subjective refraction entered by the user.

  • Page 39: Best Focus

    HD Analyzer™ Chapter 3: Functioning 3.5.2 Best Focus See the indications relating to the patient in section 3.2. Click on Best Focus to begin determining the optimal correction of spherical refraction. This process is necessary to avoid the presence of blurring on the double-pass images, which may hide other underlying problems.

  • Page 40: Types Of Measurement

    HD Analyzer™ Chapter 3: Functioning Figure 18. Best Focus sequence Now the HD Analyzer™ is ready to begin the sequencing of any measurement, activating the corresponding buttons. It also possible at this point to have the program automatically begin the OSI measurement sequence. 3.5.3 Types of measurement 3.5.3.1 OSI and Light Condition See the indications relating to the patient in section 3.2.
  • Page 41 HD Analyzer™ Chapter 3: Functioning In both cases, if the program detects that the patient’s pupil is inferior to that of the artificial pupil being used in the double-pass image capture, a warning will display at the end of the sequence. Click on either of the two buttons to begin the corresponding sequence.

  • Page 42: Tear Film

    HD Analyzer™ Chapter 3: Functioning Figure 19. Diffusion measurement 3.5.3.2 Tear Film See the indications relating to the patient in section 3.2. With Tear Film, you don’t need to establish an artificial pupil diameter when running the sequence. In order to ensure that any tear degradation is detected, including the periphery of the patient's pupil, this process is performed using the maximum possible artificial pupil size (7 mm) regardless of the value entered.

  • Page 43: Depth Of Focus

    HD Analyzer™ Chapter 3: Functioning double-pass images, reflecting the evolution of the optic quality during those 20 seconds. The images are always shown as they are being recorded. At all times, try to keep the patient’s eye centered in the coordinate axis of the visor, thus guaranteeing that any variation among the double-pass images is exclusively due to a change in the tear film.
  • Page 44 HD Analyzer™ Chapter 3: Functioning The system carries out increments of 0.5 D, taking double-pass images in each position until reaching the final position. The recorded images are shown on screen at all times. Figure 21. Depth of Focus measurement Ask the patient to try to focus on the stimulus during the Depth of Focus process.

  • Page 45: Monitoring Of Results

    HD Analyzer™ Chapter 3: Functioning 3.5.4 Monitoring of results The screens with the results of the various types of measurement are presented in a common area (bottom left) which includes the parameters used in the measurement. These parameters are: OD/OS: Measure eye (Right / Left). Sph., Cyl., and Axis: The subjective refraction values entered by the user before taking the measurement.

  • Page 46: Osi And Light Condition

    HD Analyzer™ Chapter 3: Functioning 3.5.4.1 OSI and Light Condition The results of these two measurements are shown in Figure 22 and Figure 23 respectively. Figure 22. OSI results Figure 23. Light Condition results - 46 -...
  • Page 47 HD Analyzer™ Chapter 3: Functioning The results given by the program in both measurement types are basically the same, with the exception of the OSI parameter (Objective Scatter Index), which is provided in the case of OSI (see section 1.1.2). The screen displaying the results are divided into three clearly defined areas in Figure 24: Figure 24.
  • Page 48 HD Analyzer™ Chapter 3: Functioning OSI: Only in the case of OSI. It is the Objective Scatter Index, which quantifies the degree of intraocular diffusion of the eye. For clarity, the value of OSI obtained on a color scale is also represented. This visually shows whether the value corresponds to a low, medium, or high degree of diffusion.
  • Page 49 HD Analyzer™ Chapter 3: Functioning AV Simulation view Click on the AV button in the buttons area of results to show the AV Simulation screen. This option is shown as default in processing the results. The objective of this screen (Figure 26) is to show what the image of a daily scene would be like being formed in the retina of the patient.
  • Page 50 HD Analyzer™ Chapter 3: Functioning 2D Display Click on the 2D button in the results button area to display the 2D screen. The Figure 27 shows the two representations of the retinal image. The left side of the screen shows the retinal image in 2D and the right-side zooms. The zoom allows you to zoom in and out of the image by pressing the More or Less buttons (the maximum magnification factor is 16 and the minimum is 2).
  • Page 51 HD Analyzer™ Chapter 3: Functioning 3D Display Click on the 3D button in the results button area to display the 3D screen. Figure 28. 3D Display The three-dimensional representation of the retinal image (Figure 28) is shown on the right side of the screen. The zoom allows you to zoom in and out of the image by pressing the More or Less buttons.
  • Page 52 HD Analyzer™ Chapter 3: Functioning Profile Display Click the on the Profile button in the results button area to display the Profile screen. Figure 29. Profile Display The right side of the screen shows the profile of the intensity distribution in the retinal image.
  • Page 53 HD Analyzer™ Chapter 3: Functioning MTF Display Click on the MTF button in the results button area to show the MFT screen. The MTF fully characterizes the response of an optical system. The MTF values give the quotient between the contrast in the image and the contrast in the object for each spatial frequency (see section 1.1.3).
  • Page 54 HD Analyzer™ Chapter 3: Functioning Figure 30. MTF Display There are two representation methods for the MTF chart: • The linear representation (Lineal), selected by default when the MTF graph is displayed for the first time, in which the MTF values are displayed in a linear scale.

  • Page 55: Tear Film

    HD Analyzer™ Chapter 3: Functioning 3.5.4.2 Tear Film Depending on whether the sequence has followed a sound pattern or not, the information displayed in the results screen will be one or the other. 3.5.4.2.1 Results screen without sound pattern Its appearance is shown in the following figure: Figure 31.
  • Page 56 HD Analyzer™ Chapter 3: Functioning At the top of this chart, the OSI average, along with its standard deviation, its maximum, its minimum, and the difference between the latter two are shown. If the program detects any blinking during the measurement, it marks the corresponding image as "Blink"...
  • Page 57 HD Analyzer™ Chapter 3: Functioning 3.5.4.2.2 Result screen with sound pattern This screen is divided into 3 different areas, as shown in the following figure: Figure 33. Tear film result screen with sound pattern A. Patient History Each time a measurement is guided by a sound pattern, it is classified into one of the following 5 groups, conveniently defined and identified by a number and an associated color: o 1 --- Plateau --- Bright green...
  • Page 58 HD Analyzer™ Chapter 3: Functioning Measurements whose characteristics do not allow a definite classification are associated to a sixth group, identified with zero and black. The aim of this chart is to show the evolution of a particular eye over time. You can scroll horizontally by dragging the mouse by right-clicking on the mouse.

  • Page 59: Depth Of Focus

    HD Analyzer™ Chapter 3: Functioning 3.5.4.3 Depth of Focus The results of this measurement are displayed as shown in the following figure: Figure 34. Depth of Focus Results The nine double-pass images recorded during the sequence are displayed. Each of these double-pass images has the following related information.
  • Page 60 HD Analyzer™ Chapter 3: Functioning • Under the optotype simulation, the focus position corresponding to that position is displayed. The third image will always correspond to the focus position selected in the "Best Focus" measurement results at the time the measurement was started.

  • Page 61: Result Comparison Screens

    HD Analyzer™ Chapter 3: Functioning 3.5.4.4 Result comparison screens As indicated in section 3.4.3.3 Comparing, the program has result comparison screens for each of the measurement types with the exception of Purkinje measurements. The following figures show an example of each of these screens. They all have a similar structure.
  • Page 62 HD Analyzer™ Chapter 3: Functioning Figure 36. Comparison of profiles in Light Condition measurements Figure 37. Depth of Focus measurement comparison - 62 -...

  • Page 63: Purkinje Measurement

    HD Analyzer™ Chapter 3: Functioning Figure 38. Tear Film measurement comparison You can print a comparison report. To do this, simply click Print. See section 3.5.6 for more detailed information. You can export any image displayed on these screens by double-clicking with the left side of the mouse and specifying the desired directory.
  • Page 64 HD Analyzer™ Chapter 3: Functioning The patient must perform the measurement without correcting their visual impairments. Therefore, neither test glasses nor the patient's own glasses will be used. Figure 39. Subjective refraction - 64 -...

  • Page 65: Selecting The Purkinje Option

    HD Analyzer™ Chapter 3: Functioning Therefore, the data introduced here, in terms of the Purkinje measurement, is only used to place the stimulus at the appropriate distance from the patient's eye, which will allow them to see the stimulus clearly and comfortably. 3.5.5.2 Selecting the Purkinje option Once the subjective refraction is introduced, select the Purkinje option.

  • Page 66: Select The Appropriate Option

    HD Analyzer™ Chapter 3: Functioning Figure 41. Live eye centered, but out of focus. 3.5.5.4 Select the appropriate option Once the machine is as far away as possible from the patient, and the patient's eye is moderately centered on the axis, select the appropriate option according to the type of study to be carried out: •...

  • Page 67: Focus With The Help Of The Directional Arrows

    HD Analyzer™ Chapter 3: Functioning The patient, in this step, can still blink as much as needed to feel comfortable. 3.5.5.5 Focus with the help of the directional arrows During this step the program will use 2 arrows: one blue pointing to the patient's eye, and one yellow pointing to you, which will guide your movements.
  • Page 68 HD Analyzer™ Chapter 3: Functioning At some point of this process, a green circle will appear around the Purkinje image of the laser, in a very central area of the image. Continue moving at a constant speed, keeping that green circle as centered as possible, reaching the point of best focus and passing beyond it.
  • Page 69 HD Analyzer™ Chapter 3: Functioning Shortly after surpassing it, the program will recognize that it has passed beyond the point of best focus, and will replace the blue arrow with a yellow arrow pointing in the opposite direction. Reverse the direction of movement of the machine, moving it away from the patient.
  • Page 70 HD Analyzer™ Chapter 3: Functioning At this point, the program will continue to use the arrows, and their size, to indicate which direction the machine should move to reach the point of best focus, and how far it is from that point of best focus (the larger the arrow, the farther away the machine is from the point of best focus).
  • Page 71 HD Analyzer™ Chapter 3: Functioning Once the point of best focus has been reached, the arrows will be replaced by a green mark, indicating that the machine is already at the optimum distance, so you should not move the machine any more. Figure 46.

  • Page 72: Automatic Capture Of Images And Detection Of Searched Items

    HD Analyzer™ Chapter 3: Functioning 3.5.5.6 Automatic capture of images and detection of searched items Once arrived at this point, the program will begin to capture images automatically, and behave in the following ways: • Automatic Mode: the program will try to detect, in the images: o In Pre-Without inlay acquisitions: the Purkinje image of the laser and the pupil.
  • Page 73 HD Analyzer™ Chapter 3: Functioning Figure 47. Enlargement in which the pupil and the indicated center are not correct. On the enlarged image, locate: • In Pre-Without inlay acquisitions: the center and the edge of the pupil. • In Post-With inlay acquisitions: the center and edges of the KAMRA™ "inlay".

  • Page 74: Validating A Partial Image

    HD Analyzer™ Chapter 3: Functioning Figure 48. Enlargement in which the indicated pupil and center are correct. Once you have located the correct center and diameter, click the mouse, and the program will show the partial results of the acquisition. 3.5.5.7 Validating a partial image Evaluate how good the image captured and proposed by the program is, assessing how well the borders and points detected and displayed are adjusted to the image.
  • Page 75 HD Analyzer™ Chapter 3: Functioning 3.5.5.7.1 Incorrect partial image If you consider that the detection of the pupil, or the optical axis, or the lens in case of post-operative measurements, is not good enough, select the Discard image button, and the program will return to the point again "3.5.5.63.5.5.6 Automatic capture of images and detection of searched items".

  • Page 76: Acquire And Validate The Remaining Partial Images

    HD Analyzer™ Chapter 3: Functioning 3.5.5.7.2 Correct partial image If you think the image is good enough, select the Valid image! button. The program will save the image as valid and go to the next point. Figure 50. Correct detection of the pupil in pre-operative partial measurement. 3.5.5.8 Acquire and validate the remaining partial images In Manual mode, this point is not necessary, so the program will jump directly to the next point (3.5.5.9 Final results).
  • Page 77 HD Analyzer™ Chapter 3: Functioning When returning to point "03.5.5.6 Automatic capture of images and detection of searched items", keep in mind that since neither the position of patient nor camera has moved, the eye should be in focus by now. Nevertheless, since the eye is in a state of constant change, it is possible that it has "lost"...

  • Page 78: Final Results

    HD Analyzer™ Chapter 3: Functioning 3.5.5.9 Final results At this point, the patient can leave the machine as the measurement process is now complete. Once the final image is validated, the program displays the final result. The program automatically selects the final result image among all the captured and validated images (1 in Manual mode or 5 in Automatic).

  • Page 79: Printing And Exporting A Report Of The Results

    HD Analyzer™ Chapter 3: Functioning Figure 53. Final result of a post-operative measurement. 3.5.6 Printing and exporting a report of the results In any measurement type, click the Print button to print out a full report of the results and parameters of the measurement. There are two types of reports for OSI and Light Condition.
  • Page 80 HD Analyzer™ Chapter 3: Functioning Figure 54. Example of a printed OSI report - 80 -...
  • Page 81 HD Analyzer™ Chapter 3: Functioning Figure 55. Example of a printed Light Condition report - 81 -...
  • Page 82 HD Analyzer™ Chapter 3: Functioning Figure 56. Example of a printed Depth of Focus report - 82 -...
  • Page 83 HD Analyzer™ Chapter 3: Functioning Figure 57. Example of a printed Tear Film report (double-pass images) - 83 -...
  • Page 84 HD Analyzer™ Chapter 3: Functioning Figure 58. Example of a printed Tear Film report (sound patterns) - 84 -...
  • Page 85 HD Analyzer™ Chapter 3: Functioning Figure 59. Example of a printed pre-operative Purkinje report - 85 -...
  • Page 86 HD Analyzer™ Chapter 3: Functioning Figure 60. Example of a printed post-operative Purkinje report Finally, you can also generate a report for each of result comparison screens (via the Compare option in Database). Click Print in these screens to obtain the reports. - 86 -...

  • Page 87: Setup

    HD Analyzer™ Chapter 3: Functioning 3.6 SETUP Clicking on Setup, visible on practically every screen in the program, gives you access to the system settings. Figure 61 shows the settings screen. It can be divided into clearly defined areas. Figure 61. Setup screen 3.6.1 Identification Company refers to the name of the clinic or hospital where the equipment is installed.

  • Page 88: Save And Export

    HD Analyzer™ Chapter 3: Functioning 3.6.3 Save and export The first option allows you to save automatically when showing results. The second option allows you to export automatically the results even when saving as a pdf file. The destination folder for exporting is set in the third option, and the file name in the fourth option.

  • Page 89: Tear Film Options

    The Export logs button is useful to resolve possible technical problems or unexpected behavior from the program. The program internally records logs that, via this button, can be compressed into a single file and emailed to Visiometrics Technical Support if needed.

  • Page 90: Backup

    HD Analyzer™ Chapter 3: Functioning 3.7 BACKUP Clicking on the Backup button on the main screen will create a backup copy of the database. To do this, select the location where the copy should be made. The backup is of all files related to patient data and measurements taken. This includes the Microsoft Access database file, as well as all recorded images.

  • Page 91: Measurement Examples

    HD Analyzer™ Chapter 4: Measurement examples EASUREMENT EXAMPLES 4.1 NORMAL EYE The Figure 63 is an example of a report of the measurement results of a young patient’s healthy eye. Figure 63. Normal eye You can see that the double-pass image is very small and rounded, that is, the degradation of the retinal image due to both aberrations and intraocular diffusion is very small.

  • Page 92: Eye With Cataract

    HD Analyzer™ Chapter 4: Measurement examples 4.2 EYE WITH CATARACT The Figure 64 is an example of a report of the results of an eye with cataract. Figure 64. Eye with cataract As you can see, the double-pass image is much larger than that of a normal eye. This means that the energy (light) that reaches the retina is very disperse.

  • Page 93: Post-Lasik Eye

    HD Analyzer™ Chapter 4: Measurement examples 4.3 POST-LASIK EYE After a LASIK operation, there is some uncertainty about the actual state of the eye because even if the patient sees correctly it is possible that new aberrations or a certain degree of diffusion in the cornea may appear. Carry out a measurement on the patient to verify that the operation has been a success.
  • Page 94 HD Analyzer™ Chapter 4: Measurement examples presence of both aberrations and certain diffusion. The OSI value is more significant than in the previous case (major diffusion), and the AV Potential is minor. In the simulations of the projected image on the retina, you can also see a more noticeable blurring in the second case.

  • Page 95: Troubleshooting

    Signal coming from the system cameras has been lost. The user should restart the Error in the video signal. instrument to check if it’s a repetitive error. If it is, contact Visiometrics. images from selected measurement were not found on the disk.

  • Page 96: Warning Messages

    Visiometrics. The quality of the images is too low for the MTF The MTF could not be calculated. function to process. Contact Visiometrics if this error is repetitive. Unable to measure the patient’s pupil The lighting conditions are not optimal. Unable to during the process.
  • Page 97 If an error occurs, please exit the program, turn off the instrument, and restart them both again. If the error persists, check the connections between the computer and hardware, and contact VISIOMETRICS detailing the source of the error. If the error persists, contact Visiometrics technical support. - 97 -...

  • Page 98: Manufacturer

    HD Analyzer™ Chapter 6: Manufacturer ANUFACTURER VISIOMETRICS, S.L. C/Argenters, 8. Edifici 3. Parc Tecnològic del Vallès E-08290 Cerdanyola del Vallès Barcelona (Spain) Tel.: (+34) 935 824 501 Manufacturer number: 5.122-PS Our website: www.visiometrics.com Commercial information: customerservice@visiometrics.com Technical Support: technicalservice@visiometrics.com - 98 -...

  • Page 99: Regulatory Information

    HD Analyzer™ Chapter 7: Regulatory information EGULATORY INFORMATION Emergo Australia Level 20 Tower II, Darling Park Australian sponsor 201 Sussex Street Sydney, NSW 2000 Australia - 99 -...

  • Page 100: Symbols

    HD Analyzer™ Chapter 8: Appendix A 8 SYMBOLS Warning Recycling electrical products. Do not throw out as miscellaneous urban waste, but rather dispose of it at a recycling point destined for electrical and electronic equipment. CE Brand Serial number Applicable part Laser radiation Class II equipment Fragile...
  • Page 101 HD Analyzer™ Chapter 9: Electromagnetic Immunity Guide and declaration from the manufacturer - ELECTROMAGNETIC IMMUNITY The HD Analyzer is intended for use in an electromagnetic environment, as specified below. The client or user of the HD Analyze equipment should ensure that it is used in such an environment. Immunity test Test level of the IEC Level of...
  • Page 102 HD Analyzer™ Chapter 9: Electromagnetic Immunity Recommended separation distances between portable and mobile RF communications equipment and the HD Analyzer The HD Analyzer is intended for use in an electromagnetic environment, in which radiated RF disturbances are controlled. The HD Analyzer client or user can help prevent electromagnetic interference by maintaining a minimum distance between the portable and mobile RF communications equipment (transmitters) and the HD Analyzer as recommended below, according to the maximum output power of the communications equipment.

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