cataract could be a painless vapour of the eye’s lens that diminishes the passage of sunshine to the tissue layer, leading to blurred vision.
because the eye ages, proteins within the lens square measure degraded and start to mixture, vapour alittle space of the lens. because the cataract progresses, the vapour becomes denser and additional expansive, leading to reduced visual modality. though the precise cause is unknown, age seems to be the foremost vital risk issue, as Associate in Nursing calculable seventy % of usa citizens over the age of seventy five have cataracts that interfere with their vision.