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10 Cards in this Set
- Front
- Back
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Why do exo pts need treatment?
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they need much effort to keep their eyes straight - therefore asthenopic symptoms are important
even with good control, X's and X(T)s can still be symptomatic; but also may be just observation as treatent |
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Your X(T) patient only loses control at near after being fully dissociated, and quickly regains fusion & is ortho again without re-fixating. what is your treatment? Your patient is 6 years old.
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Observe - since the pt is visually immature and has excellent control of the X(T); also this pt always has BSV
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How is control assessed?
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Home - % waking hours controlled
Office - how well pt controlled during your examination |
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In clinic, describe what would be noted as "good" control, "fair" and "poor"
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good - no spontaneous break, breaks with CT and quickly regains fusion without blinking or refixating
fair - no spontaneous break, but breaks on CT and has to re-fixate or blink to regain fusion poor - breaks spontaneously in the office without disruption iof fusion |
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Describe some tests you can do in clinic to assess control of pt's XT
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- near and distance monocular acuity
- jump convergence - NPC target/red filter - BVA - measure to light - +3.00s - CT/occlusion test - recovery (good, bad, fair) |
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how are spectacles an aid in controlling exodeviation
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better acuity = better stimulus to fuse especially witrh astigmatism and amblyopia
ALSO, minus lenses (myopic correction) stimulates accommodation and therefore accommodative convergence, and can help with exo angle |
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how can prism therapy be used for exos?
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BI prism - fuse pre-op or alleviate asthenopia/diplopia
*use least amount of prism needed, and try to reduce each visit * |
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your patient is 7 yo and has X(T) 20 pd, and is symptomatic. can you do orthopic treatmentr?
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yes, since dev < 25pd, if larger usually Sx
- symptomatic <25 pd - symptomatic CI (N>D) - small acquired XT (pre/post op) - viually immature |
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which amplitudes dio u want to build in an exo pt?
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convergence
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what are some ways to build convergence amplitudes?
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- pen push ups
- jump convergence - red filter/light - 2 pens |
