Impact of other diseases:
Cataracts are widely connected to many of the health problems like diabetes, some heart diseases, hypertension, glaucoma and alzhimer. Major cause to develop cataracts is diabetes especially in population aging 20-74. The increase in level of high blood sugar leads to swelling of eye lens. Similarly, the oxidative stress also develops heart disease and cataract. Some of the statin medications like Zocor, Lipitor that reduces the cholesterol level may also act as risk factor causing cataract. Although people suffering from glaucoma do not usually develop cataracts but in some cases where secondary causes such as eye inflammation trauma, or steroids are raseon for glaucoma, there exists chance to develop cataract. It was suggested in Alzheimer's Association International Conference that cataract surgery leads to slow mental decline.