---
title: hasLeftStereoEyeView
framework: coremedia
role: symbol
role_heading: Type Property
path: coremedia/cmformatdescription/extensions-swift.struct/key/hasleftstereoeyeview
---

# hasLeftStereoEyeView

A boolean indicating the stereo left eye is present in video frames.

## Declaration

```swift
@backDeployed(before: macOS 26.0, iOS 26.0, visionOS 26.0)
static var hasLeftStereoEyeView: CMFormatDescription.Extensions.Key { get }
```