diff --git a/src/lib.rs b/src/lib.rs
index 133e53a..d48d15b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1227,7 +1227,7 @@ impl MessageBehavior for VmcExtSetPeriod {
             OscType::from(self.blendshape),
             OscType::from(self.camera),
             OscType::from(self.devices),
-        ] }
+        ] };
     }
     fn from_osc_message(msg: OscMessage) -> Result<Self, String> {
         if msg.args.len() != 6 {
@@ -1266,3 +1266,47 @@ impl MessageBehavior for VmcExtSetPeriod {
         return Ok(VmcExtSetPeriod { status, root, bone, blendshape, camera, devices})
     }
 }
+
+struct VmcExtSetEye {
+    enable: i32,
+    position: Vector3,
+}
+
+impl MessageBehavior for VmcExtSetEye {
+    fn to_osc_message(&self) -> OscMessage {
+        return OscMessage{ addr: String::from("/VMC/Ext/Set/Eye"), args: vec![
+                OscType::from(self.enable),
+                OscType::from(self.position.x),
+                OscType::from(self.position.y),
+                OscType::from(self.position.z),
+            ]
+        };
+    }
+    fn from_osc_message(msg: OscMessage) -> Result<Self, String> {
+        if msg.args.len() != 4 {
+            return Err(String::from("arg count invalid"));
+        }
+        let enable: i32;
+        let x: f32;
+        let y: f32;
+        let z: f32;
+        match msg.args[0] {
+            OscType::Int(i) => enable = i,
+            _ => return Err(String::from("arg type invalid")),
+        }
+        match msg.args[1] {
+            OscType::Float(f) => x = f,
+            _ => return Err(String::from("arg type invalid")),
+        }
+
+        match msg.args[2] {
+            OscType::Float(f) => y = f,
+            _ => return Err(String::from("arg type invalid")),
+        }
+        match msg.args[3] {
+            OscType::Float(f) => z = f,
+            _ => return Err(String::from("arg type invalid")),
+        }
+        return Ok(VmcExtSetEye { enable, position: Vector3::new(x, y, z)})
+    }
+}