Human Eye

How is eye lens held in its position?

What is eye lens and its function?

What is meant by persistence of vision? We are able to see movie picture in a cinema hall. How does this happen?
 

The persistence of vision of a normal human eye is_____$\mathrm{S}$.

What is the least distance of distinct vision?

The least distance of distinct vision is_____$\mathrm{cm}$.

 The power of accommodation of a normal human eye is_____$\mathrm{D}$

What is power of accommodation of eye?

What happens if ciliary muscles are not working?

What is the first clear part of the eye?

What is the function of cornea in eye?

What is the iris of the eye made of?

What is the use of iris in human eye?

Which of the following is true for a pupil?
a. It regulates and controls the amount of light entering the eye.
b. It opens completely when the iris is relaxed.
c. Iris controls the expansion and contraction of the pupil.
d. Bright light causes the pupils to contract and dim light causes them to relax.

What job does the pupil of the eye do?

Explain the internal structure of eye.

Explain the external structure of the human eye.

Explain the structure of eye and its function with the help of a figure.

Cotyledons are also called-

The most comfortable distance at which one can read with a normal eye is about: