What Is Keratoconus? | 合法醫療器材資訊網

2020年10月21日—Keratoconusisaconditionwhenthenormallyroundcorneabecomesthinanddevelopsacone-likebulge.

Your cornea[1] is the clear, dome-shaped window at the front of your eye. It focuses light into your eye. Keratoconus is when the cornea thins out and bulges like a cone. Changing the shape of the cornea brings light rays out of focus. As a result, your vision is blurry and distorted, making daily tasks like reading or driving[2] difficult.

Left: A healthy cornea; Right: A cornea with keratoconus.

Doctors do not know for sure why people have keratoconus. In some cases, it appears to be genetic (passed down in families). About 1 out of 10 people with keratoconus have a parent who has it too. Keratoconus is also associated with:

Keratoconus often starts when people are in their late teens to early 20s. The vision symptoms slowly get worse over a period of about 10 to 20 years.

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