<span>A cataract is simply the clouding on the lens of the eye that makes it a little more difficult to see, causing some distortion as if looking though a fogged window. Some of these are congenital but generally they are age related due to the lens hardening an thickening as well as a side effect of diabetes. It is likely caused by inadequate delivery of nutrients to the deep lens fibers. Smoking and frequent exposure to intense sunlight increase ones risk for cataracts, but long term vitamin c supplements can help decrease the risk. In order to treat this condition, the lens can be removed and then replaced with an artificial lens.</span>
Answer:
It is developed by a scientific method with observation and research
During the moon’s quarter phases, the suns pulls against the moon’s gravitational pull instead of with it. during these tides the result is the lowest high tide and the highest low tide. so basically different gravitational pull as well as depends if its a full moon or not and if the sun, earth and moon as semi aligned