Which of the following is the role of the cornea?
Shields the rest of the eye from dust and germs and reflects light
To allow light to enter the retina
To collect light and create an image
The lens is short and fat to refract light rays from a near by object
Label this diagram of the eye (on the ends of the labels)
The function of the cornea is to allow light to enter the eye
Focuses light onto the retina
Optic Nerve
Lens
Cornea
The function of the optic nerve is
The Iris:
Pigmented
Contains muscle
Focuses light
Controls how much light enters the pupil
A specialised cell that is found in a sense organ which detects a stimulus and transforms it into an electrical impulse is called a receiver.
The ability of the lens to change shape to focus on a near or distant object is called
Focusable
Accommmodation
Elasticity
Long sited
Which of the following are symptoms of being Long sited
Can't focus on nearby objects
Can't focus on far away objects
Can't see in dark conditions
Concave lenses are a treatment option for short-sited people
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