1. The Italian technique reported in this passage ____.

1. can repair damaged retinas
2. is able to treat damaged optic nerves
3. is especially effective for burn injuries in the eyes already treated surgically
4. shows a long-term effectiveness for blindness in vision caused by damage to cornea

2. Which of the following is NOT mentioned about eye burns?

1. The places in which people work.
2. The accidents that involve using household cleaning products.
3. The mishaps that involved vehicles batteries.
4. The disasters caused by battery explosion at home.

3. What is one of the requirements for the current approach?

1. The stem cells taken from a healthy eye.
2. The patient physically healthy.
3. The damaged eye with partial vision.
4. The blindness due to damaged optic nerves.

(Reference keys.)