Here's how you can enable Reduce Motion in iOS 7.1. This will help prevent motion sickness while you use your iOS device.
1. Go to Settings.
2. Go to General.
3. Go to Accessibility.
4. Scroll down and tap on Reduce Motion.
5. Tap the Reduce Motion switch to the green (on) position.
In iOS 7.1 Reduce Motion also turns off the parallax effect in icons and alerts, as well as on the lock screen. The Weather, Messages and multitasking animations are also now affected when using Reduce Motion.
Additional resources for iOS