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15 questions
The cornea
Is where light enters the eye. It is covered by the conjunctiva
Is where light enters the eye. It is covered by the iris
Is where light leaves the eye. It is covered by the conjunctiva
Is where light leaves the eye. It is covered by the conjunctiva
This part of the eye has a small opening where light passes through and is black
Conjunctiva
Iris
Pupil
Cornea
The ____________ dilates in dim/dark light and contracts in bright light
Retina
Cornea
Iris
Pupil
The lens is flexible and can be made fatter or thinner by the muscles around it
True
False
Only in adults once the eye is fully developed
Only in people who aren't colour blind
This part of the eye contains many tiny receptor cells that detect light. They travel via the optic nerve and send electrical impulses to the brain
Lens
Retina
Cornea
Iris
Number 6 in the diagram is the ______________ and number 7 in the diagram is the _______________
Optic nerve, retina
Optic nerve, blind spot
Blind spot, retina
Blind spot, optic nerve
The fovea is
A coloured ring of muscle that controls the amount of light that enters the eye
The area at the back of the eye that sends electrical impulses to the brain
The area in the centre of the retina where we see colour and fine detail
A shield that protects against factors that can cause damage eg. dirt
Mary is having difficulty reading a sign in the distance as it is blurred. What can you conclude about her?
She's short sighted
She's long sighted
She's both
She's neither
If you are short sighted, light rays from distant objects bend drastically so an image forms _________ the retina
To the side of
Behind
In front of
On
If Sally wears glasses with concave lenses she is most likely
Short sighted
Long sighted
Colour blind
To have a bionic eye
Jacob reads a chapter of his book every night before bed. If he doesn't wear his glasses, the writing in the book is blurred. Jacob is
Short sighted
Long sighted
Both
Neither
If you are long sighted, light rays from distant objects bend drastically so an image forms _________ the retina
To the side of
Behind
In front of
On
If Joanne wears glasses with convex lenses she is most likely
Short sighted
Long sighted
Colour blind
To have a bionic eye
Jasmine is at the fruit shop wanting to buy apples. She is having difficulty telling the royal gala and granny smith apples apart. Why?
She just never buys apples so she doesn't know the different brands
She is short sighted
She is long sighted
She's colour blind. People have difficulty telling red and green apart
Cataracts occur with old age and are irreversible. More specifically, they are
Large, cloudy spots that develop on the lenses causing blurred vision
Pigments that appear on the retina causing the eye muscle to disintegrate
Air bubbles that surround the cornea of the eye
Small, cloudy spots that develop on the lenses causing blurred vision
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