Hi There. A friend of mine had Motiabin in both her eyes. The doctors told her she needed surgery. She started taking Nutriway vitamins for some other issues. She has only been taking these vitamins for 2 months. She went for a general checkup with her doctor few days ago and he said to her what kind of medication are you on . She said she is not on any kind of medication but she is only taking Nutriway vitamins consisting of The 1 daily, 1 Omega 3 three times a day, and 1Concentrated Fruits and Vegetables twice a day, these vitamin tablets all from Nutriway. The doctor said keep taking them as they have helped reduce her Motiabin or Cataract. I myself had issues with Carpal Tunnel syndrome and even after surgery on both wrists I was not ok. I continued to have pain and numbness on both hands, wrists and arms for 6 years even after the surgery. The surgery had brought some relief but it was not 100%. Other chemist vitamins I was having on my doctors suggestion did nothing in 6 years but within few months of taking Nutriway all my symptoms went away or cleared away, even other bodily pains. I wasn t taking them for Carpal Tunnel syndrome. I was taking them for just general health. Nutriways Double X is even better than the Daily as it s more potent but Daily is also good. Good luck. Let me know how it goes for your dad. Hope this brings some relief and some hope for you.