Cataracts occur as a result of aging, trauma, inflammation, or inherited characteristics. There could be several possible causes including:
• excessive exposure to sunlight
• steroid use
• diuretic use
• certain major tranquilizers
For several of the potential causes listed (i.e., steroids, diuretics, and/or major tranquilizers), additional research is needed to differentiate the effect of the disease from the effect of the drugs themselves.