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HUMAN EYE

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.
Which parts of your eye are transparent?
a)
retina
b)
optic nerve
c)
cornea and lens
d)
iris
2.
The first part of the eye that light hits. 
a)
lens
b)
cornea
c)
pupil
d)
retina
3.

What is letter I

a)
Vitreous humor
b)
Lens
c)
Optic nerve
d)
Cornea
4.
These are the structures in the eye that perceives color
a)
Rods
b)
Cones
c)
Blind Spot
d)
Pupil
5.

What is a cataract?

a)

Shortening of the eyeball

b)

Cornea has too little curvature

c)

Double vision

d)

Clouding of the lens

6.

Light enters the eye through a thin membrane called the

a)

Iris

b)

Pupil

c)

Retina

d)

Cornea

7.

Which of the following controls and regulates the amount of light entering the eye

a)

Iris

b)

Pupil

c)

Retina

d)

Corena

8.

What is the near point of a normal human eye?

a)

25 cm

b)

Infinity

c)

-25 cm

d)

25m

9.

How can hypermetropia be corrected?

a)

By using concave lens

b)

By using convex lens

c)

By using bifocal lens

d)

By using glass slab

10.

How can near sightedness be corrected?

a)

Using concave lens

b)

Using convex lens

c)

Using bifocal lens

d)

By using plane glass

11.

Q. This part of the eye carries the message from your eye to the part of your brain that controls vision. 

a)

Cornea

b)

Optic Nerve

c)

Retina

d)

Pupil

12.

Q. Where is rods and cones are located in our eyes?

a)

Retina

b)

Nervous

c)

Cornea

d)

Optic nerve

13.

The muscular diaphragm that controls the size of the pupil is ---------------

a)

cornea

b)

ciliary muscles

c)

Iris

d)

retina

14.

Having two eyes facilitates in

A : Increasing the field of view

B : Bringing three-dimensional view

C : Developing the concept of distance/ size

The correct option is/are

a)

A only

b)

A and B only

c)

B only

d)

A, B and C

15.

The black opening between the aqueous humour and the lens is called --------------

a)

retina

b)

iris

c)

cornea

d)

pupil

16.

Near and far points of a young person normal eye respectively are---------

a)

0 and infinity

b)

0 and 25 cm

c)

25 cm and infinity

d)

25 cm and 150 cm.

17.

The defect of vision in which the person is able to see distant object distinctly but cannot see nearby objects clearly is called --------------

a)

Long-sightedness

b)

Far-sightedness

c)

Hypermetropia

d)

All above

18.

The ability of eye lens to adjust its focal length to form a sharp image of the object at varying distances on the retina is called -------------

a)

Power of observation of the eye

b)

Power of adjustment of the eye

c)

Power of accommodation of the eye

d)

Power of enabling of the eye

19.

The image formed on the retina of the human eye is ----------------

a)

virtual and inverted

b)

real and inverted

c)

real and erect

d)

virtual and erect

20.

A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power

a)

+0.5D

b)

-0.5D

c)

+0.2D

d)

-0.2D