wk9: BV - Paed exam communication and management Flashcards
When is measuring vision of a child not typically possible? (2)
if child is very young (under 3) or unable to respond due to cognitive difficulties
What methods can we use to measure vision in children? (3)
Lea symbols
Pattie Pics
HOTV
All using a randomised chart where possible
How can we maintain the child’s attention when measuring vision subjectively?
Make it a “matching game” to ensure child understands the concept
If you are unsure of child’s cognitive abilities when measuring vision subjectively, what can you do to make the child more likely to cooperate?
Start with a single symptom that is big so child feels that what you are asking is EASY and they can have a go
Should measuring a child’s vision subjectively start monocularly or binocularly?
binocularly first to gain child’s confidence (also minimal disruption for child)
What is HOVT?
Literally a V.A chart with only the letters H, O, V, and T in random orders
What can you do if a child of 3-5 years confidence improves when measuring vision?
measure single symbol with isobars (crowding/contour interaction bars)
At what age might you consider LogMar presentation for vision testing? And when?
5+ years and only if sure child is able to udnerstand
At what age will we first expect 6/6 vision?
6 years old
What are the distance V.A expected norms for the following ages?
3, 4, 5, 6, 7,
3: 6/12
4: 6/9
5: 6/7
6: 6/7
7: 6/6-
What are the near V.A expected norms for the following ages?
3, 4, 5, 6, 7
3: 6/15
4: 6/12
5: 6/9
6: 6/7
7: 6/6-
For the SCCO 4+ system for evaluating oculomotor fucntion: what represents a rating of 4 +? (3)
fixation ability: smooth and accurate
pursuit ability: smooth and accurate
saccadic ability: smooth and accurate
For the SCCO 4+ system for evaluating oculomotor fucntion: what represents a rating of 3+ (3)
fixation ability: one fixation loss
pursuit ability: one fixation loss
saccadic ability: some slight undershooting
For the SCCO 4+ system for evaluating oculomotor fucntion: what represents a rating of 2+? (3)
fixation ability: 2 fixation losses
pursuit ability: 2 fixation losses
saccadic ability: gross undershooting and overshooting or increased latency
For the SCCO 4+ system for evaluating oculomotor fucntion: what represents a rating of 1+? (3)
fixation ability: more than 2 fixation losses
pursuit ability: more than 2 fixation losses or uncontrolled head movements
saccadic ability: inability to do task or any uncontrolled head movement