A cataract is a condition when the lens in the eye is clouded, resulting in blurry vision or loss of vision. The clouding is caused by changes to the lens in the eye which prevent transmission of light. You may not notice the cataracts at first but as it develops, the clouding becomes denser and blocks the light that passes through the lens. Your vision will become cloudy and blurred as a result. Over time, cataracts may lead to vision loss.
Cataracts are usually linked with aging and can develop slowly in one or both eyes due to natural changes to the eyes as you age. Other medical diseases, such as diabetes and injury to the eyes may also cause cataracts to form.
You may not experience symptoms at first but as your cataracts worsen, cataracts can cause changes to your vision. You may notice the following symptoms:
Do consult your eye doctor if you are experiencing these symptoms as they may also be signs of other eye problems.
Most cataracts happen due to natural changes in your eyes as you get older. As you age, the proteins in the lens of your eyes start to break down and clump together. This clump results in a cloudy area on your lens known as a cataract.
Age is a big risk factor for cataracts. Other risk factors include:
Visual Acuity Tests
An eye chart measures how well a series of letters can be read, to determine if your vision is 20/20 or if there are signs of impairment.
Slit Lamp Tests
A slit lamp allows your doctor to closely examine the structures at the front of the eye — including the cornea, iris, and lens — to detect any clouding or abnormalities.
Retinal examination
Your doctor may dilate your pupils with eyedrops to examine the retina and optic nerve. While cataracts may obstruct a clear view, this exam helps rule out other causes of vision problems.
