5.3 vision

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

5.3 vision

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iris

retina

sclera

cornea

pupil

optic nerve

lens

retina

Cones are for: Color (red / blue / green)

Rods are for: Light (black / white)

retina

cones work well in bright light

rods function in dim light

the fovea is the most sensitive part (lots of cones)

retina

retina

blind spot/optic nerve

test blind spot

page 125 of your workbook, excercize 16

kidshealth.org

vocabulary?

we will read the part of the paragraph together and write down difficult words

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(-) minus lenses

(+) plus lenses

glasses

- short - sightedness: you can’t see sharp in the distance, you need - (concave) glasses, your eye is too long, or your lenze can’t flatten enough

- long - sightedness: you can’t see sharp up close, you need + (convex) glasses, your eye is too short, or your lenze can’t contract enough

kidshealth.org

vocabulary?

we will read the paragraph together and write down difficult words