Organs of Sense

   EYE

   I. Describe the eye.

   II. Match.

   

   +----------------------------------------------------------------------------------------+
   |1. daltonism     |a. inability to focus close up as a result of aging                   |
   |-----------------+----------------------------------------------------------------------|
   |2. myopia        |b. clouding of the lens that affects the vision                       |
   |-----------------+----------------------------------------------------------------------|
   |3. presbyopia    |c. distortion of the cornea or the lens causing blurred vision        |
   |-----------------+----------------------------------------------------------------------|
   |4. hyperopia     |d. inflammation of the conjunctiva, also known as pink eye            |
   |-----------------+----------------------------------------------------------------------|
   |5. astigmatism   |e. also called lazy eye – it means that the eye did not develop normal|
   |                 |sight during childhood – usually one eye is strong and one eye is weak|
   |                 |(lazy)                                                                |
   |-----------------+----------------------------------------------------------------------|
   |6. glaucoma      |f. colour blindness                                                   |
   |-----------------+----------------------------------------------------------------------|
   |7. cataract      |g. condition in which the eyeballs point in different directions      |
   |-----------------+----------------------------------------------------------------------|
   |8. conjunctivitis|h. nearsightedness - clear vision close up but blurry in the distance |
   |-----------------+----------------------------------------------------------------------|
   |9. strabismus    |i. damage to the eye’s optic nerve by the fluid pressure inside the   |
   |                 |eye – it is a leading cause of blindness                              |
   |-----------------+----------------------------------------------------------------------|
   |10. amblyopia    |j.  farsightedness – clear vision in the distance but blurry close up |
   +----------------------------------------------------------------------------------------+

   

   III. Complete the sentences.

   

   1. The _____________ is the coloured ring of the eye.
   2. The _____________ is a part of the eyeball, between the sclera and the retina.
   3. This part of the eye, which focuses so that things can be seen clearly, is called the
   _____________
   4. Optic nerve is the _____________ that carries visual information to the brain.
   5. This part of the eye is a small black round area in the centre of the iris through which
   light enters eye. It's called the _____________.
   6. The _____________ is the hard white covering of the eyeball.
   7. The transparent part of the front of the eyeball is called _____________.