Load Scene With Gaze

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
// Use proper capitalization: https://msdn.microsoft.com/en-us/library/x2dbyw72(v=vs.71).aspx
// time should be named "Time":
public class time : MonoBehaviour {
    // The scene name that will be loaded
    public string sceneToChangeTo;
    // How long to gaze before loading
    public float gazeTime = 2f;
    // A timer var to keep track of how long user has looked at button
    private float timer;
    // If the user is currently gazing at button
    private bool gazedAt;

    // Use this for initialization
    void Start() {
        // Currently we are not doing anything at start
    }

    // Called once per frame
    void Update() {
        // If user has looked at button
        if (gazedAt) {
            // Increase timer by deltatime
            timer += Time.deltaTime;
            // Once timer has reached 2 seconds
            if (timer >= gazeTime) {
                // Use SceneManager not Application.Load
                SceneManager.LoadScene(sceneToChangeTo);
                // You could also load a scene with the function below:
                //ChangeScene("MySceneName");
                // Reset Timer
                timer = 0f;
            }
        }
    }

    // Load a scene by calling this function and passing a string
    public void ChangeScene(string scene) {
        // Use SceneManaer to load scene
        SceneManager.LoadScene(scene);
    }

    // Pointer Enter event
    public void PointerEnter() {
        //Debug.Log("pointer enter");
        gazedAt = true;
    }
    // Pointer Exit event
    public void PointerExit() {
        //Debug.Log("pointer exit");
        gazedAt = false;
    }
    // Pointer Down event
    public void PointerDown() {
        Debug.Log("pointer down");
    }
}