Updated with several of Tims suggestions

Assets/Prefabs/AR Fixation Point Visualizer.prefab

   m_Script: {fileID: 11500000, guid: 84e9e36f641444746b0c94dcd4bb4518, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  m_FixationPointPrefab: {fileID: 1529176408204727125, guid: 8339cb70cc6014347bd14cfea9e60601,
+  m_FixationRayPrefab: {fileID: 1529176408204727125, guid: 8339cb70cc6014347bd14cfea9e60601,
     type: 3}
 --- !u!114 &5426074507876991005
 MonoBehaviour:

Assets/Scripts/EyePoseVisualizer.cs

 
     void CreateEyeGameObjectsIfNecessary()
     {
-        if (m_Face.leftEyeTransform != null && m_LeftEyeGameObject == null )
+        if (m_Face.leftEye != null && m_LeftEyeGameObject == null )
-            m_LeftEyeGameObject = Instantiate(m_EyePrefab, m_Face.leftEyeTransform);
+            m_LeftEyeGameObject = Instantiate(m_EyePrefab, m_Face.leftEye);
-        if (m_Face.rightEyeTransform != null && m_RightEyeGameObject == null)
+        if (m_Face.rightEye != null && m_RightEyeGameObject == null)
-            m_RightEyeGameObject = Instantiate(m_EyePrefab, m_Face.rightEyeTransform);
+            m_RightEyeGameObject = Instantiate(m_EyePrefab, m_Face.rightEye);
             m_RightEyeGameObject.SetActive(false);
         }
     }

Assets/Scripts/FixationPoint2DVisualizer.cs

     void CreateEyeGameObjectsIfNecessary()
     {
         var canvas = FindObjectOfType<Canvas>();
-        if (m_Face.fixationPointTransform != null && canvas != null && m_FixationReticleGameObject == null)
+        if (m_Face.fixationPoint != null && canvas != null && m_FixationReticleGameObject == null)
         {
             m_FixationReticleGameObject = Instantiate(m_GUIFixationReticlePrefab, canvas.transform);
         }
     {
         var mainCamera = Camera.main;
 
-        var fixationInViewSpace = mainCamera.WorldToViewportPoint(m_Face.fixationPointTransform.position);
+        var fixationInViewSpace = mainCamera.WorldToViewportPoint(m_Face.fixationPoint.position);
         // The camera is mirrored so x and y must be changed to match where the fixation point is in relation to the face.
         var mirrorFixationInView = new Vector3(1 - fixationInViewSpace.x, 1 - fixationInViewSpace.y, fixationInViewSpace.z);
 

Assets/Scripts/FixationPoint3DVisualizer.cs

 
     void CreateEyeGameObjectsIfNecessary()
     {
-        if (m_FixationRayGameObject == null && m_Face.fixationPointTransform != null)
+        if (m_FixationRayGameObject == null && m_Face.fixationPoint != null)
         {
             m_FixationRayGameObject = Instantiate(m_FixationRayPrefab, m_Face.transform);
             m_FixationRayGameObject.SetActive(false);
     {
         if (m_FixationRayGameObject != null)
         {
-            m_FixationRayGameObject.transform.LookAt(m_Face.fixationPointTransform.position);
+            m_FixationRayGameObject.transform.LookAt(m_Face.fixationPoint.position);
         }
     }
 

Assets/Scripts/FixationPoint3DVisualizer.cs.meta

   externalObjects: {}
   serializedVersion: 2
   defaultReferences:
-  - m_FixationPointPrefab: {fileID: 1529176408204727125, guid: 8339cb70cc6014347bd14cfea9e60601,
+  - m_FixationRayPrefab: {fileID: 1529176408204727125, guid: 8339cb70cc6014347bd14cfea9e60601,
       type: 3}
   executionOrder: 0
   icon: {instanceID: 0}