Term
| How much hyperopia is a risk for amblyopia? |
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Definition
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Term
| How much anisometropia is a risk for amblyopia genesis? |
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Definition
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Term
| What % of amblyopia is caused by anisometropia? |
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Definition
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Term
| If a child is under 1 yr and has blue irides, what should be used to cycloplege? |
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Definition
| .5% cyclopentolate x 2 gtt 5 min apart |
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Term
| If a child is over 1 yr, what should be used to cycloplege? |
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Definition
| 1.0% cyclopentolate x 2 gtt 5 min apart |
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Term
| What condition can have larger deviation when cyclopleged? |
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Definition
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Term
| What is the concentrations and drug types in Dr Londons preferred ophthalmic spray? |
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Definition
1.0% cyclopentolate
.5% tropicamide
2.5% phenylephrine |
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Term
| What has lower systemic absorptoin, drops or ointments? |
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Definition
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Term
| What injection should be used if a pt has a toxic rxn to the ophthalmic spray? |
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Definition
| 1 mg subQ physostigmine followed by .25 mg doses every 15 min until s/sx decrease |
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Term
| What are the proper dosages for atropine? |
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Definition
<1 yr or <2 yr if blue irides: .5% tid x 3 days
>1 yr or >2 yr if blue irides: 1.0% tid x 3 days
None on day of exam |
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Term
| Should the parents instill atropine ointment on the day of the exam? |
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Definition
| No, only in the three days prior |
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Term
| What % of children with cycloplentolate refractions of >2.00D had one or more diopters of additional hyperopia w/ an atropine refraction? |
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Definition
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Term
| What magnitue of MEM lag should be seen if a pt is adequately cyclopleged? |
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Definition
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Term
| What NPA magnitude indicates cycloplegia is adequate? |
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Definition
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Term
| For a child under 18 mo w/ high EP', E(T), or accommodative ET, what is the preferred Rx? |
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Definition
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Term
| For a child 18 mo to 3.5 years w/ high EP', E(T) or accommodative ET, what is the preferred Rx? |
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Definition
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Term
| For a child >3.5 yo w/ high EP', E(T) or accommodative ET, what is the preferred Rx? |
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Definition
| Full distance Rx with near add |
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Term
| When is anisometropia prescription considered 'validated'? |
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Definition
stable aniso over 3 visits 3 months apart
child over 3.5 yo
VA or binocularity is compromised |
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Term
| What is the preferred bifocal type for children? |
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Definition
FT-35 over executive style
or |
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Term
| According to ATS, to what age can amblyopia be improved? |
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Definition
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Term
| Just wearing glasses with the ideal Rx improved amblyopia VA's by how much? |
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Definition
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Term
| What is direct vs inverse (indirect) occlusion? |
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Definition
Direct is patching the good eye
inverse is patching the amblyopia eye
Far and away direct is most common |
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Term
| Which bangerter foil leads to full VA obscuration? |
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Definition
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Term
| When do you switch from direct to inverse patching? (3 things) |
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Definition
If no VA improvement of unsteady EF after 1-2 months
If no VA improvement in deep aniso amblyopia
When fixation changes from unsteady EF to steady EF |
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Term
| What is the cutoff VA for doing binocular techniques for anisometropic amblyopia VT? |
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Definition
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Term
| What is the weaning schedule for patching? |
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Definition
One month of every other day
4-6 weeks of twice weekly
3 months of once weekly
Then check in 3 months, then 6 months after that, then yearly provided no relapses |
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