Sclera and Choroid

Q.

Why is a normal eye not able to see clearly the objects placed closer than $25\mathrm{cm}$?

Q. The cornea is a very important component of the human eye. The main function of the cornea is to

1. provide structural support to the eye
2. bend the light before it reaches the lens
3. contain concentrated amount of cone cells in the correct orientation
4. change the shape of the lens to enable the image to be focused on the retina

Q.

Which part of the eye is known as the conjunctiva?

1. Part of the retina from where the optic nerves originate.

2. The layer of the eye which protects the sclera.

3. The nerve which transmits impulses from photoreceptors to the brain.

4. Part of the retina where plenty of photoreceptors are present.

Q. Which part of the eye is grafted in case of eye donation?

1. Optic nerve
2. Cornea
3. Ciliary muscles
4. Choroid

Q.

Circular muscles around the lens are called __________.

1. iris

2. ciliary muscles

3. optic nerves

4. pupil

Q. Are contraction and expansion of ciliary muscles same ?

Q.

Outermost protective layer of the eye.

1. Retina

2. Choroid

3. Sclera

4. Conjunctiva

Q. The is the thick white membranous outer coating of the eyeball.

1. conjunctiva
2. ciliary body
3. sclera
4. choroid

Q.

Part of the eye that contains photoreceptors.

1. Retina

2. Choroid

3. Sclera

4. Conjunctiva

Q. What statement is wrong about conjunctiva?

1. Ectodermal origin
2. Vascular
3. Covers the anterior part of sclera
4. Presents on the central part of cornea

Q.

Retina forms the ___ coat of the eyeball.

Q.

Circular muscles around the lens are called __________.

1. iris

2. ciliary muscles

3. optic nerves

4. pupil

Q.

The cornea is a very important component of the human eye. The main function of the cornea is to:

1. Bend the light away from the lens

2. Provide structural support to the eye

3. Contain a concentrated amount of cone cells

4. Change the shape of the lens

Q.

The space between the cornea and the lens of the eye is called ________ .

1. Blind spot

2. Aqueous chamber

3. Vitreous chamber

4. Fovea