He has very little sight in his right eye.

他右眼视力极弱。

《牛津词典》

A blind eye can no longer sense sight, but a bionic eye can use a camera to "see" the environment and send information to the mind.

眼睛失明后无法再次感知视觉，但仿生眼可以利用摄像头“看见”周围景象，之后给大脑发送信息。

youdao

Therefore the LORD hath recompensed me according to my righteousness; according to my cleanness in his eye sight.

所以耶和华按我的公义，按我在他眼前的清洁赏赐我。

youdao

He had refused to surrender his licence despite failing an on-the-spot eye sight test three days earlier.

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The consultant, Sheraz Daya, spent more than a month testing the stability of his patient's vision before using laser technology to correct the sight in the apparently non-functioning eye.

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Though a childhood accident all but robbed him of his sight in one eye, Bing played All-American basketball at Syracuse University and went on to become an NBA Hall of Famer as a point guard, mainly for the Detroit Pistons.

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