The potential benefits of the considerably more expansive nonionic media are likely to be quite small, at least in those with moderate preexisting renal impairment.

至少对于一些本身就有中度的肾功能损害的患者来说，更加昂贵的非离子型造影剂的潜在好处也可能非常少。

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However, a considerable number of people with a visual impairment do not claim all the benefits to which they are entitled.

BBC: Wales

Understand that welfare benefits will continue to be essential to the well-being of people with a visual impairment.

BBC: Wales