The eye is a complex organ. It receives images, converts them into chemical reactions, and transmits them through nerves to the brain, allowing us to see.
Cataracts affect the crystalline lens.
They cloud the normally clear lens as a result of aging, disease, or injury. The cloudy lens prevents light from proceeding to the retina, resulting in blurred or distorted images. Cataracts are among the most common and treatable eye problems. If untreated, however, a cataract will eventually cause seriously reduced vision. An ophthalmologist is a medical doctor who has graduated from a medical school.