Amblyopia Treatment Flashcards
Which eye is usually patched?
Direct: the dominant, NAE eye –> allows stimulation of AE and reduces competition/inhibition from NAE.
In _____ patching, the AE is patched, and the dominant eye is used to establish steady EF when direct occlusion is unsuccessful
indirect
What can you use for total occlusion
- adhesive bandage/tape
- pirate patch
- clip on occluder for glasses
- translucent tape
- frosted lens
- opaque contact lens
what can you use for partial occlusion aka penalization
- occlusion foils
- over plus optical correction (spectacle or CL)
- atropine penalization
what eye do you partially occlude?
the NAE
what is the wearing time for occlusion?
- constant occlusion: during all waking hours
- part time occlusion: between 2-8 hours/day
- only during specific vision therapy procedures
Why is partial occlusion more beneficial than constant occlusion?
You still have binocularity; you improve depth perception and VA.
what do you need to consider for occlusion?
- cosmesis
- age
- acuity and performance needs: can the pt perform daily activities w/o interfering with cognitive dev, academic performance and risk of bodily harm.
what is the behavioral approach of occluding
2-4 hours per day or only during home VT procedures.
what is the occlusion time frame for seeing results?
6-8 weeks
what are the 3 things to consider for occlusion therapy
- starting VA: start with optical correction first
- Patient’s age
- Patient’s goals
What is considered moderate amblyopia? How long are you supposed to patch?
20/40-20/80 –> you usually see improvement in 3/more lines. You see first improvement in 5 weeks
2 hours
What is considered severe amblyopia? How long are you supposed to patch?
20/100 -20/400 BCVA
6 hours; can split it into 3 and 3
T/F when you patch and have optical correction you see much better improvement
true
T/F When employing occlusion therapy for amblyopia, as VA improves, stereopsis generally also improves
True
