How long it takes for a cataract to progress from the mature stage to the over-mature stage is different for everyone and varies on an individual basis. Cataracts are a common ophthalmic condition that may cause patients to experience vision loss, and the progression of cataracts from maturity to overmaturity may increase the risk of complications such as lens-derived uveitis. The time it takes for a cataract to progress from maturity to overmaturity varies due to individual differences, and different types of cataracts progress at different rates, with diabetic cataracts potentially progressing from maturity to overmaturity more quickly. There is no way to accurately predict how long it will take to reach the mature stage. Patients should go to the hospital in time for checkups and, if necessary, should be treated with surgery.