Are these sentences correct?
We write in a large font so your eyesight doesn't get damaged.
I droped my phone by mistake and the screen was damaged.
Listening at high volume for a long time can damage hearing.

Question

Answer

1) We display text using a large font to ease eye strain. - Fonts can't "damage" eyes.

2) I accidentally dropped my phone, damaging the screen. - Don't say "and", it is not a separate event.

3) Listening at high volume for long periods can damage hearing.

Answer

1)  We write in large letters to prevent eye strain.
2)  I dropped my phone by mistake and damaged the screen.
3)  (Does not need corrections)