Chinese noobie needs help :D

[yejiawen]

Hey! I have a chinese essay to write, and the topic is (Also good topic if anyone wants to practice writing SL pieces ^^ )

小，中学生用电脑打作文不好 (Write to on an education forum as an English teacher to express why it is bad.)


I wrote this for the last point :S (Not sure if it's correct)
最后，常常用电脑对学生的身体有不好的效果。 电脑的屏幕有辐射，可以让学生长大的时候，眼睛不好。

Can someone correct this sentence for me please? I'm in (SL)

I'm trying to say, it's not good for their health in the long term. The monitor has radiation that can cause bad eye sight in children.

Thanks in advance, yes my chinese is horrible