Good vision is required. Contact lenses and glasses are acceptable; however, applicants must have an uncorrected vision of 20/100 and correctable to 20/30 in each eye.

• 视力必须较好。可以佩戴眼镜或隐形眼镜，但是必须保证非矫正视力不低于0.；3，矫正视力不低于1