---
title: leftEyeTransform
framework: arkit
role: symbol
role_heading: Instance Property
path: arkit/arfaceanchor/lefteyetransform
---

# leftEyeTransform

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

## Declaration

```swift
var leftEyeTransform: simd_float4x4 { get }
```

## Discussion

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. 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.

## See Also

### Tracking Eye Movement

- [rightEyeTransform](arkit/arfaceanchor/righteyetransform.md)
- [lookAtPoint](arkit/arfaceanchor/lookatpoint.md)