The cell that allow us to see colour in bright light.
What are cone cells?
100
People not being able to see far distances.
What is the effect of nearsightedness?
100
People not being able to see near distances.
What is the effect of farsightedness?
100
People not being able to see near and far distances.
What is the effect of astigmatism?
200
An opaque tissue surrounding the cornea; visible as the white part of the eye surrounding the iris.
What is the sclera?
200
The inner lining of the back of the eye containing light-sensitive rods and cones that convert light images into electrical signals for interpretation by the brain.
What is the retina?
200
Nearsighted people have eyes that are too short from front to back.
What is a false statement?
200
Farsighted people have eyes that are too short from front to back.
What is a true statement?
200
Wavy and twisted.
What is the distortion of images to people with astigmatism?
300
The coloured ring of muscle surrounding the pupil of the eye.
What is the iris?
300
The lens' job in the eye.
What is focussing and bending light?
300
What would be blurry to a near-sighted person? A reading paper on their desk or the clock hanging on the far wall.
What is the clock hanging on the far wall?
300
What would be blurry to a far-sighted person? A poster being held in front of them or a soccer player shooting on the far-side of the field
What is the poster being held in front of them?
300
Lenses, corneas or both.
What are the parts that are too flat in eyes that are stigmatized?
400
When the pupil is not sized proportionately to the iris.
What is the effect of a dilated pupil?
400
The place on the retina where the optic nerve is attached and which cannot detect light because of the absence of both cone and rod cells.
What is the blind spot?
400
The light that enters the eyes focuses on a point in front of the retina.
What is the flaw with a nearsighted person's eyes?
400
The light that enters the eyes focuses on a point in behind the retina.
What is the flaw with a farsighted person's eyes?
400
What would be blurry to person with stigmatized eyes? A whiteboard in a classroom or a seal in the ocean.
What are two correct answers?
500
In bright light, your pupil getting smaller.
What is the affect of your iris contracting your pupil to reduce the amount of light entering the eye?
500
The definition of the eye's cornea.
What is a transparent tissue covering the iris and pupil of the eye?
500
A characteristic of near-sighted eye lens.
What is the characteristic of too curved?
500
A characteristic of far-sighted eye cornea.
What is the characteristic of too flat?
500
With eyeglasses, contact lenses, or surgery.
What is the way eye doctors correct astigmatism so a person can see clearly?