diff --git a/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/DisplayImageHolderController.java b/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/DisplayImageHolderController.java
index 7e8af1ef..0fe0ad0f 100644
--- a/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/DisplayImageHolderController.java
+++ b/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/DisplayImageHolderController.java
@@ -50,6 +50,12 @@ public final void initialize(final URL location, final ResourceBundle resources)
 		mBody.getChildren().add(mController.getRoot());
 	}
 
+	@Override
+	public final void close() {
+		mController.close();
+		super.close();
+	}
+
 	/**
 	 * Checks if narrow display is required.
 	 *
diff --git a/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/DisplayImagePairController.java b/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/DisplayImagePairController.java
index 26988fbc..d9741acb 100644
--- a/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/DisplayImagePairController.java
+++ b/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/DisplayImagePairController.java
@@ -44,6 +44,13 @@ public final boolean isDirty() {
 	public final void initialize(final URL location, final ResourceBundle resources) {
 	}
 
+	@Override
+	public final void close() {
+		mControllerRight.close();
+		mControllerLeft.close();
+		super.close();
+	}
+
 	/**
 	 * Setter for the eye photo pair. Initializes the view.
 	 *
diff --git a/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/MainController.java b/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/MainController.java
index 3172be54..28407673 100644
--- a/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/MainController.java
+++ b/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/controller/MainController.java
@@ -280,7 +280,7 @@ public final void addSubPage(final BaseController controller, final int paneInde
 			mSubPageRegistry.add(controller);
 		}
 		else {
-			position = unclosablePages();
+			position = unclosablePagesCount();
 			mSubPageRegistry.add(position, controller);
 		}
 
@@ -394,7 +394,7 @@ private void disableClose(final int position) {
 	 * @return true if there is a page that can be closed.
 	 */
 	public final boolean hasClosablePage() {
-		return mSubPageRegistry.size() > unclosablePages();
+		return mSubPageRegistry.size() > unclosablePagesCount();
 	}
 
 	/**
@@ -402,7 +402,7 @@ public final boolean hasClosablePage() {
 	 *
 	 * @return the number of unclosable pages.
 	 */
-	private int unclosablePages() {
+	private int unclosablePagesCount() {
 		int counter = 0;
 		for (BaseController controller : mSubPageRegistry) {
 			if (!controller.isCloseable()) {
diff --git a/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/fxelements/SizableImageView.java b/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/fxelements/SizableImageView.java
index 810a73dd..10a37f0f 100644
--- a/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/fxelements/SizableImageView.java
+++ b/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/fxelements/SizableImageView.java
@@ -277,7 +277,6 @@ public final void setEyePhoto(final EyePhoto eyePhoto) {
 		this.mEyePhoto = eyePhoto;
 
 		Image image = eyePhoto.getImage(Resolution.NORMAL);
-
 		if (image.getProgress() == 1) {
 			// image is already loaded from the start.
 			Platform.runLater(new Runnable() {
diff --git a/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/util/imagefile/EyePhoto.java b/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/util/imagefile/EyePhoto.java
index 0cab22af..59a5d268 100644
--- a/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/util/imagefile/EyePhoto.java
+++ b/AugendiagnoseFX/src/de/eisfeldj/augendiagnosefx/util/imagefile/EyePhoto.java
@@ -27,7 +27,7 @@ public class EyePhoto {
 	/**
 	 * The maximum size of the image cache.
 	 */
-	private static final int MAX_IMAGE_CACHE = 3;
+	private static final int MAX_IMAGE_CACHE = 4;
 
 	/**
 	 * Indicator if the file has already a formatted name.