When people see my daughter wearing a patch they will ask if she is "cross eyed" or has a "crazy eye". When I tell them she has a Lazy Eye, it is often assumed this is the case. She does not have Strabismus, Exotropia or Esotropia.
Strabismus: Misaligned Eyes
Exotropia: Eyes that turn outward
Esotropia: Eyes that turn inward
When you hear the "term" Lazy Eye you may associate this with an eye that floats or wanders or turns (inward or outward). These conditions are not the same as Amblyopia (true Lazy Eye) but they may exist co-morbidly, or lead to amblyopia.
What is Amblyopia?
*** I am not a doctor. I am a mother. I am going to describe this in simple terms that anyone can understand ***
Amblyopia is a neurological. The short of it is that the brain is favoring one eye over the other. Vision in the non-favored eye becomes suppressed. Over time it can lead to blindness/loss of vision in that eye.
Types/Causes of Amblyopia:
Strabismic Amblyopia - This is when Amblyopia occurs as a result of a physical condition of the eye (i.e. Strabismus - Exotropia - Esotropia).The type of Amblyopia that my daughter has is Anisometropic Amblyopia.
Refractive or Anisometropic Amblyopia - This is when Amblyopia results from a refractive error between the two eyes. Even more simply put, the two eyes have differing prescriptions. The eye with the "better" vision (closer to 20/20 prescription) will typically become the dominant eye while vision from the other eye is "turned off".
Amblyopia can also result from a physical condition like cataracts, eyelid droop, or an eye trauma.