I dont know. Carotid cavernous sinus fistula very very rare. Not even mentioned in our books moreso if there is correlation or association with neovascular glioma.

Glaucoma develop in 30-50% of cases with direct CCF, ( few cases with neo-vascular glaucoma ).

http://content.lib.utah.edu/utils/getfile/collection/EHSL-NOVEL/id/1533/filename/1803.pdf

Isolated cases have also been reported in literature e.g

http://www.ncbi.nlm.nih.gov/pubmed/1707247

http://www.ncbi.nlm.nih.gov/pubmed/9402840

Thank you very much Farah,

I was able to obtain a full text attached below:

Neovascular Glaucoma Complicating Carotid-Cavernous Fistula

JAMA. 1963;183(13):160. doi:10.1001/jama.1963.03700130120033.