vertexDistance
The distance between the back of the lens and the eye, measured in mm.
Declaration
@NSCopying var vertexDistance: HKQuantity? { get }Discussion
This property’s range is from 12 to 14 mm.
The distance between the back of the lens and the eye, measured in mm.
@NSCopying var vertexDistance: HKQuantity? { get }This property’s range is from 12 to 14 mm.