Which term designates 'Left eye'?

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Multiple Choice

Which term designates 'Left eye'?

Explanation:
The left eye is designated by using Latin terms where Oculus means eye and sinister means left. The abbreviation for Oculus Sinister is o.s., so o.s. is the standard way to indicate the left eye. In contrast, the right eye is Oculus Dexter (o.d.), and o.u. stands for both eyes. The other abbreviations either refer to the right eye or to something not about the eyes (for example, a.u. means both eyes, and a.d. is not an ophthalmic term for the eye). So o.s. is the correct designation for the left eye.

The left eye is designated by using Latin terms where Oculus means eye and sinister means left. The abbreviation for Oculus Sinister is o.s., so o.s. is the standard way to indicate the left eye. In contrast, the right eye is Oculus Dexter (o.d.), and o.u. stands for both eyes. The other abbreviations either refer to the right eye or to something not about the eyes (for example, a.u. means both eyes, and a.d. is not an ophthalmic term for the eye). So o.s. is the correct designation for the left eye.

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