Write a literature review for thesis project with subject of diabetic retinopathy clients that have visual impairment or onset vision loss.

I need a literature review for thesis project with subject of diabetic retinopathy clients that have visual impairment or onset vision loss. I will need at least 5 references and three thorough pages. This information MUST be concise with comprehension of subject of diabetic retinopathy as it relates to visual impairment/vision loss and how it affects the adult. I would like to create a program to support the needs of said client.  I have had bad services from homeworkmarket lately. I hope this is better request.