Setting Up Contact Lens Trials

Fitting each patient with the right contact lenses is a challenge. You can document contact lens trials in Encompass, and when you find the right lens, you can copy it to the final prescription. What do you want to do?

  1. Open the Vision Exam. To learn how, go to Opening the Vision Exam.
  2. Click the Soft Contact Lenses tab along the left side.
  3. Continue documenting the trial soft lens prescription.
  1. Make any changes to the Recorded On and Time as needed.
  2. Select the Usage for the contact lens.
  3. Select a Status for the contact lens.
  4. Select an Underlying Conditiononly if you are not prescribing a lens for the selected eye.
  5. Click Refraction History and select the refraction you want to import, or enter the details for the patient’s contact lenses.
    • Details. Select the Manufacturer and Product from the drop-down menus. Select the patient’s prescription from the drop-down menus.
    • Over Refraction. Select the patient’s Sphere, Cylinder, Axis, Distance Visual Acuity and Near Visual Acuity.
    • Assessment and CL Regimen. Select the Wearing Schedule, Replenishment, and Disinfecting information. Enter any Assessment Notes.
    • Notes. Enter any notes as needed. You may elect to print notes on the prescription if needed.
  6. Click Save.
  1. Open the Vision Exam. To learn how, go to Opening the Vision Exam.
  2. Click the Specialty Contact Lenses tab along the left side.
  3. Continue documenting the trial soft lens prescription.
  1. Select an Underlying Condition only if you are not prescribing a lens for the selected eye.
  2. Select a Product.

    The Manufacturer and Lens Type automatically populate based on the Product.

    In rare instances where more than one manufacturer produces the same lens product, you'll need to select a Manufacturer.

    Select the Manual Entry check box to manually enter the Product, Manufacturer, and Lens Type

  3. Enter the Base Curve, Diameter, and Sphere.
  4. Enter the remaining values as needed.

    If you need to record a value for a field that isn't available, select Additional Fields

  5. Repeat these steps for the other eye.

    Select Copy OD to OS to copy the values from the right eye to the left. You can edit any values that are different

  1. Open the Specialty Contact Lens page. To learn how, go to
  2. Click the Additional Fields button.

    The Additional Fields window opens.

  3. Depending on your needs, take the following actions:
    • Click the (plus) to make a field visible.
    • Click the (minus) to hide a field.
    • Click and drag the (arrows) to change the order.
  4. Click Save to save your changes.

The Specialty Lens Prescription page updates to reflect the changes you made.

When you hide a field, that filed will not appear on new prescriptions. Encompass will always show fields that have values recorded. If you hide a field and import a specialty contact lens prescript that has a value recorded in that field, the field will be visible and editable in that prescription.

The changes you make here only apply to you and are reflected on the web and iPad app. Other providers in your practice can customize these fields according to their own prescribing practices.

The Specialty Lens feature in Encompass give you the flexibility to add or remove fields according to your prescribing preferences. Tap the Additional Fields button to customize which fields you see. The following table describes the fields that can be shown or hidden.

Field Definition Notes
Axis 2 Secondary axis or oblique axis, measured in degrees This value may have different names depending on manufacturer or product
Base Curve 2 Secondary curve, peripheral curve, landing curve, intermediate curve, or alignment curve This value may have different names depending on manufacturer or product
Blend The smoothness of the transition between different curves on a contact lens  
Center Thickness The thickness of the lens at its center, which can impact oxygen permeability and comfort  
Cylinder 2 Secondary cylinder or peripheral cylinder This value may have different names depending on manufacturer or product
Edge Thickness The thickness of the lens at its edge, affecting comfort and lens movement  
HVID Horizontal Visible Iris Diameter, the measurement of the iris from one side to the other  
Material The type of material used to make the contact lens, influencing oxygen permeability and comfort
OAD Overall Diameter, the total diameter of the contact lens  
Optical Zone The central area of the lens that provides the prescribed vision correction  
PCR Peripheral Curve Radius, the curvature of the outer edge of the lens  
Prism A lens feature used to correct double vision or to stabilize the lens on the eye  
Radius 2 Secondary radius, intermediate curve, or first peripheral curve This value may have different names depending on manufacturer or product
Radius 3 Tertiary radius, landing curve, or second peripheral curve This value may have different names depending on manufacturer or product
SAG Sagittal Depth, the distance from the back surface of the lens to the front surface at the center  
Segment Height The height of the bifocal or multifocal segment in the lens  
Skirt The outer portion of a hybrid lens that rests on the sclera  
Sphere 2 Secondary sphere This value may have different names depending on manufacturer or product
Tint Color intensity and type of color added to the lenses  
Width 2 Secondary width, first peripheral curve width, or intermediate zone width This value may have different names depending on manufacturer or product
Width 3 Tertiary width, landing zone width, or second peripheral curve width This value may have different names depending on manufacturer or product

Want to watch a video tutorial on documenting the vision exam? Check out our series on Pretesting and Creating Prescriptions (Browser).