Optometric Examination in Children Flashcards

1
Q

Why is paediatric optometry important?

A

Its the best way of monitoring visual development - the majority of strabismus start to be noticed around 18-32 months.

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2
Q

If a child comes in for their first eye test ever what components/features of an eye exam would you pay extra attention to?

A

History and symptoms
Investigating visual acuity, binocularity, colour vision.
Any management they would need going forward.

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3
Q

Parents will often say a child has a ‘squint’ - why is this language problematic?

A

You don’t know whether they mean that the child screws up both their eyes to have a look in to the distance or whether one eye turns in - you really need to clarify this!

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4
Q

Why is an intermittent manifest deviation in a 2 month old not uncommon?

A

Sensory and motor fusion develop between the ages of 3 to 6 months therefore an intermittent manifest deviation is not uncommon before this age

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5
Q

What additional questions would you ask in a paediatric examination?

A

Birth history
Full Term Normal Delivery (FTDN)?
Whether they have Low birth weight (this is around 2.5kg, 5lb 8oz)
Or were a Premature birth
Or for any Problems in utero or on delivery

Developmental history
Normal developmental milestones achieved
Sitting up, walking, talking

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6
Q

If a parent notices the same eye constantly turning in/out is amblyopia more or less likely to be the cause?

A

More likely to be the cause

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7
Q

If a parent notices different eyes constantly turning in/out in their child, is amblyopia more or less likely to be the cause?

A

Amblyopia is less likely to be the cause for an alternating deviation

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8
Q

If a deviation has an early onset is it more or less likely to be an accommodative issue, and so is surgery required or not?

A

Early onset, most likely non-accommodative, surgery probably required

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9
Q

If a deviation has an late onset is it more or less likely to be an accommodative issue, and so is surgery required or not?

A

Late onset, most likely accommodative, surgery probably not required

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10
Q

If a px has a constant deviation do they have binocular single vision?

A

no

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11
Q

If a px has an intermittent deviation do they have binocular single vision?

A

Yes they have some BSV

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12
Q

What is a premature birth?

A

before 37 weeks

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13
Q

What ocular conditions are associated with premature births from 28 to 37 weeks?

A

Increased risk of myopia and significant (>2D) astigmatism
Retinopathy Of Prematurity (ROP)

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14
Q

What is classed as ‘extremely premature’?

A

before 27 weeks

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15
Q

What ocular conditions are associated with extremely premature births?

A

One-third of extremely prematurely born children in this study (n=411) had some kind of eye or visual problems e.g. visual impairment, strabismus, or major refractive error.
ROP (retinopathy of prematurity) is a risk factor for strabismus (O’Connor et al., 2002)

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16
Q

How may problems in utero or on delivery affect the eyes?

A

Issues with delivery could cause retinal haemorrhages or corneal trauma.

17
Q

True or false- a family history of poor vision can mean a child is more likely to need glasses at an early age

A

True

18
Q

True or false- if one monozygotic twin has a manifest deviation there is an increased chance the other twin shall do

A

True- 73% of monozygotic twins will develop manifest deviation if other twin does

19
Q

What are the four basic types of acuity measurement?

A

Four basic types of acuity measurement:

Detection (minimum visible)

Resolution (minimum resolvable)

Recognition (minimum recognisable)

Hyper-acuity (minimum discriminable

20
Q

How do you carry out a detection test?

A

Refer to smallest test object that can be detected

21
Q

What is a resolution test and how do we carry it out in children?

A

A test which allows us to measure smallest angular separation between adjacent targets.
In clinic we use Preferential looking (PL).
(These are the cards with the gratings on them).

22
Q

What are different examples of resolution tests?

A

Keeler Acuity cards
Cardiff acuity cards
Kay picture tests
Keeler LogMAR crowded test
Peekabo App

23
Q

How do you use keeler acuity cards?

A
24
Q

How do you carry out a cardiff optotype test and what are the possible cons?

A
25
Q

How do you carry out a kay picture test and what are the possible cons?

A
26
Q

How do you carry out a keeler LogMAR test?

A
27
Q

What are some near vision tests for children ?

A
  • Kay test ( at 33cm)
  • Lea symbols (at 40cm)
  • Sonksen-Silver Sheridan Gardiner
28
Q

What are examples of binocular vision assesments?

A

•Stereopsis

•Hirschberg test

•Cover test

•Motor fusion

•Motility

•Near point of convergence

29
Q
A