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Eye Tests - Astigmatism Test and Eye Exe

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更新日期:2018-11-13

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Eye Tests - Astigmatism Test and Eye Exercises(圖1)-速報App

To complete the astigmatism test please follow these five steps:

Eye Tests - Astigmatism Test and Eye Exercises(圖2)-速報App

If you wear glasses or contact lenses, put them on.

Eye Tests - Astigmatism Test and Eye Exercises(圖3)-速報App

Sit about 35 cm (14 inches) away from your computer screen.

Eye Tests - Astigmatism Test and Eye Exercises(圖4)-速報App

Look at the chart with your hand covering one eye.

Eye Tests - Astigmatism Test and Eye Exercises(圖5)-速報App

How do the lines appear? (Are they all equally clear and sharp?)

Eye Tests - Astigmatism Test and Eye Exercises(圖6)-速報App

Follow these steps again to test the other eye.

Eye Tests - Astigmatism Test and Eye Exercises(圖7)-速報App

If you suspect you have astigmatism you should visit your optician and ask for an eye examination. Your optician will use an astigmatism chart to help determine the curvature of your cornea or lens. An abnormal curvature will sharply focus parts of the image onto your retina, while blurring others.

Eye Tests - Astigmatism Test and Eye Exercises(圖8)-速報App

Astigmatism can cause blurred vision when you are trying to focus on activities that require you to see objects at long distances, such as road signs. It can also affect your vision for close activities, such as reading or sewing. If left uncorrected, astigmatism can lead to headaches, fatigue, squinting and pain in the muscles around your eye.

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