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# rightEyeTransform

A transform matrix indicating the position and orientation of the face’s right eye.

```
var rightEyeTransform: simd_float4x4 { get }
```

## Discussion

The translation aspect of this matrix indicates the position of the center of the eyeball, relative to the position represented by the anchor’s [`transform`](/documentation/ARKit/ARAnchor/transform). The positive z-axis points from the center of the eyeball in the direction of the pupil.

Rotational aspects of the matrix indicate the orientation of the eyeball—for example, a rotation about the x-axis directs the pupil upward or downward. The eye does not rotate about the z-axis.

![Diagram showing the coordinate axis origin defined by the rightEyeTransform, representing both the position and rotation of the eye relative to the face anchor.](images/com.apple.arkit/media-3001544@2x.png)

---

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