Cataracts are caused by a build-up of protein that clouds the eye’s lens, which can lead to blurred vision and eventual blindness.
Cataracts are an eye condition caused when the lens of the eye develops cloudy patches. Over time these patches usually grow bigger, causing blurry, misty vision. There are different types of cataracts, depending on which part of the eye’s lens is affected: they can affect the center, the sides, or the back of the lens. They can appear in just one eye or in both eyes, although they may not develop at the same time. Eventually, if they’re not treated, cataracts can lead to blindness.
Causes & Risk Factors
Cataracts are caused by a build-up of protein in the eye, and usually develop because of old age. However, they can also appear as a result of eye injuries or following eye surgery for other problems. They can also be present from birth: in many poorer countries, where healthcare and treatment may be less readily available, childhood cataracts can be a major cause of blindness.
Symptoms
Blurred, dim or misty vision
Difficulty seeing in low light or at night
Sensitivity to light, lights can appear too bright or glaring
Colors look faded or muted
Seeing a ‘halo’ around bright lights
Surroundings that appear to be washed out