Amblyopia Tx: 2 Flashcards
What is the most common type of occlusion used ? Which eye is occluded?
Direct occlusion
- non-amblyopic eye
This describes occluding the amblyopic eye. When do we use this?
Inverse occlusion
- to tx steady eccentric fixation
This is complete occlusion, no form perception.
Total occlusion
This is blurred form perception. What can we use to make this happen?
- partial occlusion
- use atropine
What are the 2 ways we can do total occlusion?
- Patches (Adhesive, Slip-on)
2. Occluding lenses (CLs)
What are 3 ways we can do partial occlusion?
- Occlusion lenses (overplus non amblyopic eye)
- Occlusion filters
- Atropine Penalization
How much patching is needed for moderate amblyopia? severe amblyopia?
- 2 hours with 1 hr of near work
- 6 hrs with 1 hr of near work
Are near activities beneficial while patching?
No huge difference when patient does near activities vs. distance activities
Will increased patching improve acuity in residual amblyopia?
Yes!
- if px is doing 2 hrs, increase to 6 hrs
How does atropine compare to patching?
- improvement in VA was similar to magnitude between the two tx groups
- compliance was better in atropine group
Does the VA improve faster with patching or atropine?
Patching
- but equal at 6 months
How frequent should atropine be put in the patient’s eyes?
Weekend atropine (one drop saturday and one drop sunday)
Does atopine + optical penalization (with specs) increase VA in amblyope?
no
What’s the best way to treat amblyopia in older patients (7-17)?
Treat with patching or atropine
- both showed similar improvement
Risk of amblyopia recurrence after cessation of treatment is 4x more common when __?
Patching of 6-8hours was stopped abruptly
- must ween off
