Human Growth and Development / Unit 3 HGD 0337 short lesson, about 20 seconds
Newborn Vision
Captions available
The idea
Vision is the least developed sense at birth: sight is blurry and best at close range, with low acuity and weak contrast sensitivity.
In practice
Acuity sharpening to about twenty over two hundred by three months, enough to see a large letter.
Where people slip
The fovea, the retina's centre for sharp detail, keeps developing into the second year, so full acuity comes later.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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