求翻译：视力问题一直是困扰中学生的一大问题，因为用眼不良或用眼过度导致的视力下降以及眼疾严重影响了学生的学习。而保护眼睛就成了最最主要的任务。阅读时间，光线，睡眠时间，用眼方法的不当都会导致眼睛视力下降，以致学生患有假性近视然后慢慢转变为近视眼。所以要进行适量的阅读而不能整天趴在书堆里，不能在直射的阳光下读书，日光灯也要有适量的亮度才对眼睛有益。是什么意思？

Vision problems has been a major problem of the troubled high school students, because of the bad eye or overuse causes decreased vision and eye diseases a serious impact on student learning. Eye protection has become the most important task. Reading time, light, sleep time, improper eye method will

Vision problem has been plaguing the middle school one of the major issues, with an eye for poor or eyestrain resulting in the loss of vision and eye problems seriously affected their learning. While protecting your eyes will be the most the most important task. Reading time, sleep time, light, and

The vision question always is puzzles the middle-school student a major problem, because not good or causes excessively with the eye with the eye the vision drop as well as eye disease have affected student's study seriously.But protected the eye to become extremely the main duty.Reading time, light

Vision problems has been troubled by problems of middle school students, as excessive bad eyes or eye cause vision problems and eye diseases seriously affect student learning. And eye protection on most major tasks. Reading time, light, sleep time, improper methods of eye eyes vision problems can oc

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