Amblyopia

[ituryu]

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Has there been a change in the definition of amblyopia , but I do understan it to be a redution in the visual acuity of a patient mainly below 6/9 which can not be corrected by Rxs and can not be attributed to any pathological change or structural damage. What do you all think ?

 

[drbizzaro]

6/9 being 20/30 i'm assuming

well. in my opinion amblyopia results from abnormal cortical development, and not from an abnormality of the eye itself 👍

 

[samwY]

is it fixable?

 

[cpw]

if caught early enough sometimes amblyopia can be helped with patching therapy and training. But amblyopia is only diagnosed when you've ruled out ALL other options (pathology and the like) There's no cure, but some therapies can help VA slightly

 

[xmattODx]

if caught early enough sometimes amblyopia can be helped with patching therapy and training. But amblyopia is only diagnosed when you've ruled out ALL other options (pathology and the like) There's no cure, but some therapies can help VA slightly

Helped slightly?
What is early and why does it need to be caught early?

 

[cpw]

it needs to be caught while the visual system is still developing. I don't have my binocular vision books handy to look up the exact numbers but I believe it's before 6 years old.

First line treatment is glasses to fully correct the person, then patching the better eye to force use of the weaker ('lazy') eye. Surgery is a treatment only in patients where strabismus (eye turn) is causing the amblyopia.

Patching with full correction is very successful in young children... not so much in young adults. (but it can improve VA some)