The anatomy of the veins of the orbit of the eye varies between individuals , and in some the central retinal vein drains into the superior ophthalmic vein .
In some anatomy drains directly into the cavernous sinus .
The anatomy of the veins of the orbit of the eye varies between individuals , and in some the central retinal vein drains into the superior ophthalmic vein , and in some it drains directly into the cavernous sinus .