Lazy Eye or Amblyopia is an eye condition in which a defect in one eye prevents the eye/brain connection from fully developing that eye. This typically occurs before the age of 7. This causes the individual to suppress the defective eye.
Causes of Lazy Eye (Amblyopia)
The suppression of one eye is typically due to something that prevents the eye from seeing well such as cataracts, refractive errors (myopia. hyperopia), eyes with a large disparity between the left and right, strabismus and double vision.
Do You Have a Lazy Eye?
Many people spend a large portion of their lives without even realising that their vision is being effected by a Lazy. A good way to test for Amblyopia is to hold two fingers up in front of you one close to your nose and the other 12 inches behind it. Look at your closest finger. Do you see two behind it? Now look at the furthest finger do you see two fingers closest to you?
Most people without a lazy eye should see one finger when they look at it and the other should be two. The reason for this is we use two eyes to see, when we focus on an object we fuse the two images of the one object together into one clear image. Everything outside this point of fusion is being seen by the two eyes separately creating two images.
I only see one image but I don’t have Amblyopia?
Due to misuse of the eyes it is common for people without a Lazy eye to not see the double image in the background or foreground when holding up their fingers. This is a form of suppression. Where the brain is favoring one eye over the other but not because of a visual defect as a child. We could call this Lazy Brain, instead of Lazt Eye.
Tip of the Week
In the tip of the week this week we discuss how you can easily test which eye of yours is the “Strongest” and which eye is the “weakest”.