References:
1) Pizzorno Jr. JE, Murray MT. Textbook of Natural Medicine. [ebook]. Elsevier Health Sciences, 09-Sep-2012. [cited 2016 Dec 12]. Available from:https://books.google.co.in/books?id=e_xEF3gwmmoC&pg=PA1333&lpg=PA1333&dq=nutrient+deficiency+eye+complications+diabetes&source=bl&ots=J0WybkOTtW&sig=4DCetWxjLb2bCtRqFd5aqrsXdag &hl=en&sa=X&ved=0ahUKEwiBoOGJyvDQAhUEuY8KHa2AANg4FBDoAQglMAI#v=onepage&q=nutrient%20deficiency%20eye%20complications%20diabetes&f=false