Knowledge Base
2. Linking EyeSpace to your topographer

1. Getting Started with EyeSpace Desktop Software

3. EyeSpace Desktop SoftwareCharl Laas

Welcome to EyeSpace. Once you have activated your software for the first time EyeSpace will launch into the Patient Panel.

Patient Panel

The patient panel allows you to search for a particular patient by typing the name or surname of the patient into the search bar:

A. Patient Name

Right-click on the patient name to delete or export patient data.

B. Menu

Click on the menu button to bring up the following options:

  1. Manually import either EyeSpace (.eye) or Medmont E300 (.mxf) export files into EyeSpace.
  2. Create a new patient.
  3. Manually enter Corneal Data.
  4. Log out of your EyeSpace account.
  5. Exit EyeSpace.

Lens Design Flow

With EyeSpace 3, the process of designing a new lens is streamlined. With fewer screen clicks and a more intuitive screen layout, designing speciality lenses has never been this easy.

To start, select your patient and then:

  1. Select either the right or left design button.
  2. Select the topography map you want to use.
  3. Click ‘New Lens’.

The ‘New Lens’ window will open:

  1. Select the lens design.
  2. Enter HVID.
  3. Enter spectacle prescription.
  4. Click ‘Done’.

Lens Design Page

The design pages for Forge Ortho-K and Bespoke Alignment fit lenses have a fresh new layout with all the design data visible on the main screen, similar to the EyeSpace Scleral design page. Each design page is divided into three main sections.

Forge Ortho-K:

Bespoke Alignment Fit:

EyeSpace Scleral:

A. Design navigation menu

The lens navigation menu shows a list of all the captured topography maps and lens designs for that particular patient.

Topography Map

  1. Left-click on the topography map to view the topographical data.
  2. Left-click on the drop-down list to switch the display to either a Tangential, Axial, Corneal Height or Elevation map.

Lens Design

  1. Left click on the lens design to view the design page.
  2. Right click on the lens design to duplicate or delete the design.

Hide Menu

  1. Left-click on the ‘Hide Menu’ button to hide the navigation bar. Click on the button again to reverse the effect.

B. Corneal, refractive and lens design data
Forge Ortho-K

  1. Corneal data.
  2. Spectacle prescription / diagnostic lens and over refraction data.
  3. Basic lens design parameters.
  4. Advanced lens design parameters.
  5. After adjusting the BOZR, Z-Zone, or AC use the ‘Optimize AC and Z-Zone’ button to restore the ideal lens-to-cornea fitting relationship.
  6. After adjusting any of the lens parameters, use the ‘Apply’ button to resimulate the lens design without optimising the lens-to-cornea fitting relationship.
  7. Once the design is complete, use the ‘Add to Cart’ button to place the lens order in the shopping cart.

Bespoke Alignment Fit

  1. Corneal data.
  2. Spectacle prescription / diagnostic lens and over refraction data.
  3. Basic lens design parameters.
  4. Advanced lens design parameters.
  5. After adjusting basic or advanced design parameters use the ‘Optimize AC’ button to restore the ideal lens-to-cornea fitting relationship.
  6. After adjusting any of the lens parameters, use the ‘Apply’ button to resimulate the lens design without optimising the lens-to-cornea fitting relationship.
  7. Once the design is complete, use the ‘Add to Cart’ button to place the lens order in the shopping cart.

EyeSpace Scleral

  1. Basic lens design parameters.
  2. Advanced lens design parameters.
  3. Scleral Lens Back Vertex Power.
  4. Once the design is complete, use the ‘Add to Cart’ button to place the lens order in the shopping cart.
  5. Update an existing lens design already placed in the Shopping Cart.

C. Simulation section

Forge Ortho-K and Bespoke Alignment Fit

At the top of the simulation section, five tabs are available providing more in-depth information regarding the lens design and lens-to-cornea fitting relationship.

A. Simulation

  1. By default shows the tear film profile of the horizontal meridian or the meridian specified by clicking on the NaFl lens simulation shown in the bottom half of the simulation screen (see point 6).
  2. Shows the tear film profile with a 90-degree angle with respect to the meridian shown above.
  3. Lens simulation which correlates with the NaFl pattern as observed when the lens is placed on the eye.
  4. The blue areas represent the area of lens bearing on the cornea.
  5. The average central Tear Film Thickness (cTFT).
  6. Shows the specific tear film thickness under the lens at the point of click. Clicking on this point will also change the meridian used for the tear film cross-section by drawing a line from where you have clicked through the centre of the cornea and then plotting that cross-section (see Point 1).

B. Tilt and Position

The tilt, position, and stabilisation controls are now available in a separate tab. As before, adjusting these values does not change the lens parameters. Aim for equal lens bearing (blue zones) over the horizontal meridian, or a three-point touch, in the alignment curve zone.

  1. Unchecked, EyeSpace will automatically calculate the tilt of the lens. As a practitioner, you can decide if the tilt looks realistic, and in case it is not, manually change the tilt value.
  2. The tilt buttons show the principal meridians of the lens. Clicking on the tilt buttons will change the tilt value by 0.05 increments/decrements.

More Reading:

For more information on lens tilt please read the following articles:

C. Optical Analysis

The optical analysis tab helps to visualise the optics of the cornea, tear lens system, and the final lens power. The plot shows the power of each element in air along each corneal meridian.

  1. The Ocular Refraction power (OR) shows the patient's contact lens prescription (vertexed spectacle prescription). For example, a patient with spectacle prescription -3.00D and vertex distance 12.0 mm will have an ocular refraction -2.90D.
  2. Tear power is the power of the tear lens formed between the cornea and the posterior surface of the contact lens.
  3. Ideal BVP is the ideal back surface power of the lens required to correct the patient's refractive error. This needs to take into account the tear power and is simply the ocular refraction minus the tear power.

D. Lens Schematic

  1. Lens sagittal height graph.
  2. Lens information (sagittal height, radius of curvature, and angle) at a given chord in the four quadrants of the lens.

E. Notes

Journal for clinical notes regarding the lens design and fit.

EyeSpace Scleral

At the top of the simulation section, two tabs are available providing information regarding the lens design and lens-to-cornea fitting relationship.

A. Lens Schematic

  1. Lens sagittal height graph.
  2. Lens information (sagittal height, radius of curvature, and angle) at a given chord in the four quadrants of the lens.

B. Optic Zone Tear Film Thickness

The Tear Film Thickness Profile or central fluorescein profile helps to visualise the alignment of the BOZR over the first 8.00mm of the cornea. The initial BOZR, as suggested by EyeSpace, is derived from the Best Fit Sphere obtained from the topography data, and if needed, can be manually adjusted by the practitioner based on clinical observations. The aim is to achieve a fluorescein profile which is a straight line.

  1. Flat meridian Tear Film Thickness Profile
  2. Steep meridianTear Film Thickness Profile

Ordering

Clicking the ‘Add to Cart’ button will display a dialogue to confirm the back vertex power of the lens. EyeSpace will automatically calculate the recommended values, which can be modified if clinically necessary.

  1. Back Vertex Power (BVP) is the power of the lens in air. EyeSpace automatically calculates the ideal BVP of the lens, and you will not need to make adjustments to this value unless troubleshooting is required.
  2. Shows the Residual Astigmatism as calculated with the lens on the eye. If the residual astigmatism is more than -0.75Dc the visual acuity of the patient will be compromised. Revisit the corneal data, spectacle prescription and lens design for accuracy and if the residual astigmatism is still present rather place the order under review to allow your lens consultant to assist you with the fit.
  3. Places the final order in the shopping cart.
  4. Cancels the order, but will NOT delete the lens design data.