---
title: farPupillaryDistance
framework: healthkit
role: symbol
role_heading: Instance Property
path: healthkit/hkglasseslensspecification/farpupillarydistance
---

# farPupillaryDistance

The distance between the pupil and the center of the nose when looking at an object far away, measured in mm.

## Declaration

```swift
@NSCopying var farPupillaryDistance: HKQuantity? { get }
```

## See Also

### Accessing the specification’s data

- [nearPupillaryDistance](healthkit/hkglasseslensspecification/nearpupillarydistance.md)
- [prism](healthkit/hkglasseslensspecification/prism.md)
- [vertexDistance](healthkit/hkglasseslensspecification/vertexdistance.md)