Paediatric cls Flashcards
1
Q
Changes with age
A
Corneal diam - 10mm -> 11.6mm by 10yo
Eyeball length 17mm -> adult 24mm
Corneal radius of curvature 7mm@birth -> 7.9mm @10yo
Start with mod hyperopic rx
2
Q
Infant considerations
A
Small PAS Strong OO muscle tone Low blink rate Tear vol - starts low then increases Corneal shape/rx changes
3
Q
Pros for paed cls
A
Larger fov
Low risk of prismatic effect in high rx
Enhanced normal visual development
Children more cl tolerant than adults
4
Q
Cons of paed cls
A
Risk of MK
Difficulty in cl handling
Cost
5
Q
Indication for paed cls
A
Therapeutic Amblyopia patching Bandage, photophobia Nystagmus, albinism Cosmetic - scarred cornea/aniridia Strong Dislike specs Craniofacial abnormalities
6
Q
Pros for paed aphakia
A
Good optical correction
Reduced distortion/aniseikonia
Less image mag
Increased potential for bv development
7
Q
Typical BVPs for aphkia
A
6wk = 34D 6months = 28D 12months = 24D
8
Q
Disadvantages of anaesthesia
A
Risks involved Cost Dynamic fit unassessable Some characteristics may vary under anaesthesia Cl fit may be diff when child awake
9
Q
Advantages of anaesthesia
A
Increased accuracy of ocular measurements
Easier cl application
Static assessment better
Other tests as/if needed
