Visual Development Flashcards
When do horizontal and vertical saccades present?
Horizontal saccades are already present in new borns.
Vertical saccades present at 2 months
When do pursuits emerge?
2-4 months of age
When does the optokinetic response occur?
T-N and N-T response (asymmetic) for the first 4 months and becomes a symmetric response at 6 months
What is the VA of a newborn?
20/400 to 20/1200
What is the VA of a 1 month?
20/300 to 20/1200
What is the VA of a 2-4 month?
20/150 to 20/600
What is the VA of a 6-12 month?
20/50 to 20/200
What is the VA of 18 month?
20/40 to 20/100
What is the VA of a 24 month?
20/30 to 20/80
At what age does VA reach 20/20?
3 years
What is the VA of a newborn using VEP?
20/400
What is the VA of a 1month using VEP?
20/200
What is the VA of a 2-4 month yo using VEP
20/80
What is the VA of a 6-12 month yo using VEP?
20/20
What does binocular reach adult levels?
18 months
At what age are they able to converge to the nose?
6 months
fixation/ following a target usually begins at what age?
4 months
Stereopsis reaches adult levels by what age?
6 months
Accommodation reaches adult levels at what age?
6 months
Pupil responses are well-developed at what age?
1 month
Color vision reaches adult-like levels at what age?
3 years of age
Blink response to visual threats begins at what age?
2 months
Contrast sensitivity is completely developed at what age?
3-5 years
