His bad eyesight exempted him from military service.

他因视力不好而免服兵役。

《牛津词典》

There is also an increase of people born with bad eyesight others develop poor vision at an early age.

天生视力较弱或幼年视力发育不佳的人不断增多。

youdao

In fact, glasses are a poor indication of intelligence because you can have bad eyesight for a number of reasons and then choose to wear contact lenses.

事实上，戴眼镜却并不能代表一个人很聪明，因为造成视力不好的原因有很多，而且人们也可以选择戴隐形眼镜。

youdao

The reshaped cornea corrects the patient's bad eyesight so he or she does not have to wear glasses or other corrective lenses.

VOA: special.2010.09.01

Walters had always wanted to fly, but bad eyesight prevented him from becoming a pilot.

NPR: Pinback: The Rise and Fall of 'Lawn Chair Larry'

Insp Wayne Tucker, South Wales Police's road safety manager, said while most of those discovered to have bad eyesight were elderly, officers also found many younger people needed sight tests.

BBC: Young drivers warned over eyesight by South Wales Police

Insp Tucker said one man in particular, who was in his early 30s and drove for a living, had such bad eyesight that police prevented him from driving until he got glasses.

BBC: Young drivers warned over eyesight by South Wales Police