1. The doctor prescribed glasses with a diopter of -2.5 for my nearsightedness.
医生给我开了一个-2.5度的近视眼镜。

2. The camera lens has a diopter adjustment to help you focus more accurately.
相机镜头有一个度数调节，可以帮助你更准确地对焦。

3. The optometrist will test your eyes to determine the correct diopter for your prescription.
验光师会测试你的眼睛，以确定你的处方所需的正确度数。

4. It is important to have the correct diopter in your contact lenses to avoid eye strain.
在隐形眼镜中有正确的度数是很重要的，可以避免眼睛疲劳。

5. The telescope has a diopter adjustment to accommodate different users' vision.
这个望远镜有一个度数调节，可以适应不同用户的视力。

6. Make sure to check the diopter settings on your binoculars before using them.
在使用双筒望远镜之前，请确保检查度数设置。