5.3 vision

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

5.3 vision

https:

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

(-) 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

Glasses

accomodating or eyeball length 

Far sighted (Verziend): Short eyeball, only clear vision of distant objects.

Short-sighted (Bijziend): Long eyeball, only clear vision of nearby objects. 

Read

BOOK: BRICKS textbook -> Ch5 Sense it

What: 5.3 Vision

HOW: 10 minutes, in silence (whispering is allowed)

DONE? start with exercises 9-15 (Workbook page 124)

Practical

BOOK: BRICKS textbook -> Ch5 Sense it

What: 5.3 Vision practical exercises 16 - 19 (Workbook page 125)

HOW: 10 minutes, in duos

DONE? Finish your homewok (exercises 9-15)