The point yin tang, which you are describing, will very commonly bleed. It is also a pretty commonly used point that has strong effects on overall relaxation, etc. As far as nerve damage, there really isn't a nerve there that would have an effect on the eyes, so I can assure you that you do not have "nerve damage" in that area. I imagine the point (and others used) could relax facial and neck muscles which I suppose could lead to some sort of an effect that you are describing - but it would inconsequential and quite rare. To comment more particularly, however, I would have to know your whole case (i.e. why you were seeking treatment) and what points and techniques the practitioner used.