Optonet Vision Unit Documentation

Please note that this User Guide is being currently updated; new sections will be added shortly.

  1. QuickStart Guide (in 5 steps)
    1. Step 1. Choosing Hardware
    2. Step 2. Installation and Calibration
    3. Step 3. Menus
    4. Step 4. Control of Menus and Charts
    5. Step 5. Customise Sequences of Charts
    6. How to check if my charts are well calibrated?
  2. Home-based Vision Training (Orthoptics)
    1. Patient Selection
    2. Calendar
    3. Daily Exercise Program
    4. Parameters
    5. Comments
    6. Login Credentials for the patient
    7. Attaching documents
    8. Save Therapy
    9. Access as Patient
    10. Remote monitoring of patient progress
    11. Management of Patient’s Access
  3. Virtual Eye Clinic
  4. Visual Acuity
    1. logMAR VA
    2. Logarithmic Notation
    3. VA Rating (VAR) or VA Score (VAS)
    4. VA Tools Menu
      1. Selecting Rows and VA Values.
      2. Visual Acuity Range
      3. Bi-Chrome Function
      4. Isolated Optotypes (Rows, Columns and Letters)
      5. Contrast
      6. Randomizing the order of optotypes
      7. Vanishing Optotypes
      8. Intermediate Steps
      9. Tablet as a remote controller for VA
    5. VA Optotypes
      1. Sloan letters
      2. British Letters
      3. Numbers
      4. Landolt Optotype "C"
      5. E of Snellen
    6. References Visual Acuity
    7. Paediatric Visual Acuity
      1. Test of “Broken Glasses”
      2. Symmetrical Optotype
      3. References Paediatric Visual Acuity
    8. Automated Visual Acuity Testing
      1. ETDRS, Bailey-Lovie, Snellen E, Numbers and Landolt C
      2. Symmetrical Letter Chart
      3. Broken Glasses Chart
      4. References Automated VA Testing
      5. VA Testing Protocol > 8 years old (printable document)
      6. VA Testing Protocol ≤ 8 years old (printable document)
  5. Setup
    1. Colour Calibration

1.5.Step 5. Customise Sequences of Charts #

With the Optonet Vision Unit you can set customised tests sequences to move from one chart to the next, thereby establishing a testing routine without having to go back through the menus.

To define a sequence, open the menu on the left, go to Setup and then to Tests-Sequences. Let’s follow the process, step by step:

Creating a Sequence: we first we need to name the sequence at the top of the page (or we can choose one from the list, to modify it). Choose a test from the list on the left and then click on the right arrow to add it to the sequence on the right side.

To modify the order of tests in the sequence, we can select it and then move its position in the list with the vertical arrows on the right side. When you finish, don’t forget to press on the save button. The OVU allows creating many different customised sequences.

Using a Sequence: Open the left menu -> setup -> test-sequences and choose the sequence you want to use from the list. Then save the choice with the green button (lower right corner).

If we open the left menu, we can see the name of the chosen sequence at the top. To move to the next or previous chart in the sequence, there are three options:

Keyboard: with the keys “Page up” & “Page down”


Mini-Keyboard

Tablet/Phone Gestures: you can slide the finger on the top left quadrant: to the left, to go to the next chart, or to the right to go back to previous.

Left Main Menu: There are small arrows on both sides of the sequence name that allow moving to the next/previous test in the sequence.

« Step 4. Control of Menus and ChartsHow to check if my charts are well calibrated? »
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