The word “cataract” is derived from the Greek word katarraktes which loosely translates to waterfall. It was believed that a congealed fluid from the brain had flowed in front of the lens of the eyes. Today, eye cataract is defined as the clouding of the lens of your eyes.
When proteins present in the eye form clumps, it muddles the vision with a cloudy, hazy outline. It gradually develops and starts interfering with your vision and unless treated could lead to total blindness.
The major cause for cataract is age. Other than that, various factors can cause the formation of cataracts like:
These factors can increase the likelihood of developing cataracts
A thorough eye examination by an ophthalmologist is recommended to determine the presence of a cataract. A comprehensive medical eye examination should be done. This is achieved by the following tests:
• Visual Acuity test - This test will assess the clarity and sharpness of your vision. Here, each eye will be tested individually to check the ability of the eye to see letters of different sizes placed at a distance.
• Slit-lamp exam – A special microscope is used in this test to examine the cornea, iris, lens and other parts of the eye. This lens bends light as it enters into the eye making it easier for the ophthalmologist to spot abnormalities.
• Retinal exam – Here, eye drops are put in the eyes to widen the pupils. The ophthalmologist can examine the retina and optic nerves and to also look for glaucoma.