One's health in some instances is a good, at others times it doesn't matter. (120)

Hicks: that health is in some cases a good, in others a thing indifferent;

Yonge: Health is good for some people, but a matter of indifference to others.

Mensch: Health in some instances is a good, in others a matter of indifference.

Original text: καὶ τὴν ὑγίειαν τισὶ μὲν ἀγαθόν, τισὶ δ᾽ ἀδιάφορον.

I would interpret this as saying that our happiness is not dependent on our health.

See "setting up statues" for another use of ἀδιάφορον (ἀδιάφορως) (indifference/indifferent).

Even if the wise one loses their sight, they will not withdraw into themselves and avoid living their life. (119)

Hicks: But even when he has lost his sight, he will not withdraw himself from life: this is stated in the same book.

Yonge: And even, though he should lose his eyes, he will still partake of life (as he says in the same book). (i.e., Περὶ βίων)