thanks a lot for your reply , i will keep you informed of the new details
This is a very difficult problem, each case is somewhat different so I cannot give specific answers. You need to discuss with surgeon. He needs to control his diabetes, blood pressure, cholesterol, weight, not smoke; he may need more laser, surgery such as vitrectomy to remove blood, may need cataract removal or lensectomy, glaucoma treatment may need drops, laser or glaucoma surgery.
JCH MD