What Is Amblyopia?

Amblyopia is:    

Strabismus: When the eyes are not directed to an object at the same time.                                                    
Anisometropia: (an-i’-so-me-tro’-pe-a):  A difference in the need for glasses between the two eyes.        

Hyperopia: Far-sightedness.    

Myopia: Near-sightedness.     

Astigmatism: Unequal focusing of light rays as they enter the eye, causing a blurring of objects.                                                    
Media opacity: An object that prevents light from entering the back of the eye.