my mum is 69 years of age,and have cateract in both of here eyes,she has some heart problems,and hypertensive,so they are waiting to get her pressure at a steady level first before they do corrected surgery first on her eyes,but in the mean time,is castarol a good oil she can put over her eye lids to help slow down the process or reverse it,some one told me it does,is that true,or what is a best home remedy,she can use for this problem,thanks and i am waiting for your reply