Fund my blind child with learning disabilities

My son was 5 when we found out he is going blind. He is 10 years old now and only has about 5% vision left. He is in a school for blind children, but along with going blind, he has a lot of learning problems and he can not keep up with the pace that is required of him. He has been held back twice now, and he is really struggling. We got an appointment at a Neurologist for evaluations but we do not have the money and we do not have medical aid. His first evaluation is R2650 and from there on he will have to go to regular visits and maybe even get scans like MRI and EEG scans that will cost a lot of money. At this moment I do not know the costs of everything. But it will help a lot if we could get the right diagnoses so that we and the school can go about this in the correct way, and it will also help him create a better future for himself.