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WorksheetsEye structure and functions
Total questions: 10
Worksheet time: 5mins
Which part of the eye controls the amount of light that enters?
Cornea
Iris
Lens
Retina
What is the function of the cornea?
To produce tears
To detect color
To refract (bend) light entering the eye
To focus images on the retina
Which part of the eye focuses light onto the retina?
Iris
Pupil
Lens
Cornea
The retina contains cells that are sensitive to light. These cells are called:
Cones and rods
Nerves and vessels
Fibers and tissues
Axons and dendrites
The part of the eye where the optic nerve leaves the eyeball, creating a blind spot, is the:
Fovea centralis
Cornea
Optic disc
Pupil
What is the transparent, jelly-like substance that maintains the shape of the eyeball?
Aqueous humor
Vitreous humor
Conjunctiva
Sclera
Which part of the eye provides most of the protection and gives it shape?
Retina
Iris
Sclera
Cornea
The clear, watery fluid between the cornea and lens is called the:
Vitreous humor
Aqueous humor
Retinal fluid
Ocular gel
The fovea centralis is responsible for:
Peripheral vision
Color blindness
Sharp central vision
Producing tears
Which part of the eye converts light into nerve impulses that are sent to the brain?
Lens
Retina
Iris
Cornea
